Communication method and device

Abstract

The invention discloses a communication method and device, and the method can be suitable for a perception or communication perception integrated scene, can flexibly select the power distribution granularity, improves the flexibility and rationality of power distribution, and improves the perception performance and / or communication performance based on reasonable power distribution. The method comprises: an RAN node determines and indicates a power allocation granularity corresponding to a first signal to a terminal. Wherein the power allocation granularity corresponding to the first signal is one of at least two power allocation granularities, and the at least two power allocation granularities comprise at least one of a subcarrier, a subcarrier group, a resource block or a resource block group. The first signal may be a reference signal, or a signal carried in a data channel or a control channel. And the terminal obtains the power allocation granularity corresponding to the first signal based on the indication of the RAN node, and sends or receives the first signal based on the power allocation granularity.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communications, and in particular to a communication method and apparatus. BACKGROUND

[0002] In the process of the 5th generation (5G) mobile communication system evolving into 5G-advanced (5G-A) technology, communication and perception integrated technology is considered as one of the key technologies that can expand the business capabilities of mobile communication networks. The core idea of this technology is to add perception capabilities to the mobile communication network to build the ability to detect and image targets, so that the two capabilities of communication and perception can coexist in harmony in one network, and even mutually benefit each other.

[0003] The technical principle of perception is different from that of communication. In communication, the sending end modulates information on radio waves and sends it to the receiving end, and the receiving end demodulates the signal carried on the radio waves to obtain the information. In perception, the sending end sends radio waves in a specific direction, and when the radio waves irradiate the target surface, reflected waves are formed, and the receiving end receives the reflected waves and processes them to obtain information such as the position, speed, and type of the target.

[0004] At present, when the sending end sends a signal for perception, it usually performs frequency domain power allocation with a fixed frequency domain resource granularity, resulting in poor flexibility of power allocation. SUMMARY

[0005] The present application provides a communication method and apparatus, which can flexibly select a power allocation granularity and improve the flexibility of power allocation.

[0006] In a first aspect, a communication method is provided. The method can be performed by a RAN node, or by a component of the RAN node, such as a processor, a chip, or a chip system of the RAN node, or by a logic module or software that can implement all or part of the functions of the RAN node. The method comprises: determining a power allocation granularity corresponding to a first signal, and sending indication information indicating the power allocation granularity corresponding to the first signal. The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities, and the at least two power allocation granularities include at least one of a plurality of subcarriers, a plurality of subcarrier groups, a plurality of resource blocks, or a plurality of resource block groups. The first signal is a reference signal or a signal carried in a data channel or a control channel.

[0007] Based on the scheme, when performing signal transmission, the RAN node can indicate one power allocation granularity from at least two power allocation granularities, so that the transceiver can determine the power corresponding to each subcarrier in the bandwidth occupied by the signal based on the power allocation granularity indicated by the RAN node, and then transmit or receive the signal according to the power corresponding to each subcarrier. Since multiple power allocation granularities are provided, the RAN node can flexibly select a power allocation granularity suitable for current signal transmission, improve the flexibility and rationality of power allocation, and thus improve the sensing performance and / or communication performance based on reasonable power allocation.

[0008] In a possible design, the method further includes: receiving or transmitting the first signal according to the power allocation granularity corresponding to the first signal.

[0009] In a possible design, the method further includes: transmitting second indication information, where the second indication information indicates a power allocation manner corresponding to the first signal. The power allocation manner is one of at least two power allocation manners. The at least two power allocation manners include at least one of a first power allocation manner, a second power allocation manner, a third power allocation manner, a fourth power allocation manner, a fifth power allocation manner, or a sixth power allocation manner. The power allocation manner is used to determine the power corresponding to the frequency domain resource group in the bandwidth occupied by the first signal. The size of the frequency domain resource group is the size of the power allocation granularity corresponding to the first signal.

[0010] Based on the possible design, when performing signal transmission, the RAN node can indicate one power allocation manner from at least two power allocation manners, so that the transceiver can determine the power corresponding to each frequency domain resource group based on the power allocation manner indicated by the RAN node, and then transmit or receive the signal according to the power corresponding to each frequency domain resource group. Since multiple power allocation manners are provided, the RAN node can flexibly select a power allocation manner suitable for current signal transmission, improve the flexibility and rationality of power allocation, and thus improve the sensing performance and / or communication performance based on reasonable power allocation.

[0011] In a second aspect, a communication method is provided. The method can be performed by a terminal, or by a component of the terminal, such as a processor, a chip, or a chip system of the terminal, or by a logic module or software that can implement all or part of the functions of the terminal. The method includes receiving indication information indicating a power allocation granularity corresponding to a first signal, and transmitting or receiving the first signal according to the indication information. The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities, and the at least two power allocation granularities include at least one of a plurality of subcarriers, a plurality of subcarrier groups, a plurality of resource blocks, or a plurality of resource block groups. The first signal is a reference signal or a signal carried in a data channel or a control channel. The technical effects brought by the second aspect can refer to the technical effects brought by the first aspect, which will not be repeated here.

[0012] In a possible design, transmitting or receiving the first signal according to the indication information includes determining the power allocation granularity corresponding to the first signal according to the indication information, and transmitting or receiving the first signal according to the power allocation granularity corresponding to the first signal.

[0013] In a possible design, the method further includes receiving second indication information indicating indication information of a power allocation manner corresponding to the first signal. The power allocation manner is one of at least two power allocation manners. The at least two power allocation manners include at least one of a first power allocation manner, a second power allocation manner, a third power allocation manner, a fourth power allocation manner, a fifth power allocation manner, or a sixth power allocation manner. The power allocation manner is used to determine the power corresponding to a frequency domain resource group in a bandwidth occupied by the first signal. The size of the frequency domain resource group is the size of the power allocation granularity corresponding to the first signal.

[0014] In combination with the first aspect or the second aspect, in a possible design, the indication information indicates the power allocation granularity corresponding to the first signal, including that the indication information indicates the type of the power allocation granularity corresponding to the first signal, and / or the indication information indicates the value of the power allocation granularity corresponding to the first signal.

[0015] In combination with the first aspect or the second aspect, in a possible design, the indication information is carried in a first field. When the first field is set to a first value, the type of the power allocation granularity corresponding to the first signal is a subcarrier; or when the first field is set to a second value, the type of the power allocation granularity corresponding to the first signal is a subcarrier group; or when the first field is set to a third value, the type of the power allocation granularity corresponding to the first signal is a resource block; or when the first field is set to a fourth value, the type of the power allocation granularity corresponding to the first signal is a resource block group.

[0016] In a possible design of the first aspect or the second aspect, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates a number of frequency domain resource units occupied by the first signal, and the number of frequency domain resource units occupied by the first signal is associated with the power allocation granularity corresponding to the first signal.

[0017] Based on this possible design, the power allocation granularity corresponding to the first signal can be determined based on the number of frequency domain resource units occupied by the first signal. Since the RAN node needs to schedule the frequency domain resource units to transmit the first signal when the first signal is transmitted, the scheduling information of the first signal can be reused to indicate the power allocation granularity corresponding to the first signal, thereby saving signaling overhead.

[0018] In a possible design of the first aspect or the second aspect, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates a signal type of the first signal, and the signal type of the first signal is associated with the power allocation granularity corresponding to the first signal. The signal type of the first signal includes at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel.

[0019] Based on this possible design, the power allocation granularity corresponding to the first signal can be determined based on the signal type of the first signal. Since the RAN node can indicate the signal type of the first signal when scheduling transmission of the first signal, the scheduling information of the first signal can be reused to indicate the power allocation granularity corresponding to the first signal, thereby saving signaling overhead.

[0020] In a possible design of the first aspect or the second aspect, when the frequency domain resource unit is a resource block, in a case where the number of resource blocks occupied by the first signal is greater than or equal to a fifth value, the power allocation granularity corresponding to the first signal is 2 resource blocks; in a case where the number of resource blocks occupied by the first signal is less than the fifth value and greater than or equal to a sixth value, the power allocation granularity corresponding to the first signal is 1 resource block; in a case where the number of resource blocks occupied by the first signal is less than the sixth value and greater than or equal to a seventh value, the power allocation granularity corresponding to the first signal is 0.5 resource block; and in a case where the number of resource blocks occupied by the first signal is less than the seventh value, the power allocation granularity corresponding to the first signal is 1 subcarrier.

[0021] With reference to the first aspect or the second aspect, in a possible design, in the case that the signal type of the first signal is a signal carried in a data channel or a control channel, the power allocation granularity corresponding to the first signal is 2 resource blocks; in the case that the signal type of the first signal is a reference signal, and the reference signal is used for sensing and communication, the power allocation granularity corresponding to the first signal is 1 resource block; in the case that the signal type of the first signal is a reference signal, and the first signal is dedicated for sensing, the power allocation granularity corresponding to the first signal is 0.5 resource block.

[0022] With reference to the first aspect or the second aspect, in a possible design, the first power allocation manner includes: from an edge frequency domain resource group to a center frequency domain resource group of the first bandwidth, the power corresponding to the frequency domain resource groups decreases in turn, and the power corresponding to the frequency domain resource groups to which power is allocated is the same; or the second power allocation manner includes: from the edge frequency domain resource group to the center frequency domain resource group, the power corresponding to the frequency domain resource groups increases in turn, and the power corresponding to the first frequency domain resource group is the first power; or the third power allocation manner includes: from the edge frequency domain resource group to the center frequency domain resource group, the power corresponding to the frequency domain resource groups increases in turn, and the power corresponding to the first frequency domain resource group is the second power; or the fourth power allocation manner includes: from the edge frequency domain resource group to the center frequency domain resource group, the power corresponding to the frequency domain resource groups decreases in turn, and the power corresponding to the second frequency domain resource group is the third power; or the fifth power allocation manner includes: from the edge frequency domain resource group to the center frequency domain resource group, the power corresponding to the frequency domain resource groups decreases in turn, and the power corresponding to the second frequency domain resource group is the fourth power; or the sixth power allocation manner includes: the power corresponding to the frequency domain resource groups is related to the channel quality corresponding to the frequency domain resource groups. The first frequency domain resource group and the second frequency domain resource group are frequency domain resource groups in the first bandwidth, the first power and the second power are different, and the third power and the fourth power are different.

[0023] With reference to the first aspect or the second aspect, in a possible design, the first power allocation manner further includes: there is a frequency domain resource group in the first bandwidth to which no power is allocated.

[0024] Based on the possible design, multiple power allocation manners can be provided, and thus the RAN node can flexibly select a power allocation manner suitable for current signal transmission according to characteristics of different power allocation manners, thereby improving flexibility and rationality of power allocation. For example, based on the first power allocation manner, power is preferentially allocated to the edge frequency domain resource group, which can maximize sensing accuracy and sensing resolution. Based on the second power allocation manner, sensing false alarm rate can be reduced. Based on the third power allocation manner, a better compromise between sensing accuracy / sensing resolution and false alarm rate can be achieved, that is, while ensuring sensing accuracy / sensing resolution, a lower false alarm rate can be maintained. Based on the fourth power allocation manner, a better compromise between sensing accuracy / sensing resolution and spectrum efficiency can be achieved, that is, while ensuring sensing accuracy / sensing resolution, spectrum efficiency can be ensured. Based on the fifth power allocation manner, a better compromise between sensing accuracy / sensing resolution, false alarm rate and spectrum efficiency can be achieved, that is, while ensuring sensing accuracy / sensing resolution, a lower false alarm rate and higher spectrum efficiency can be ensured. Based on the sixth power allocation manner, higher power can be allocated to the frequency domain resource group with better channel quality, thereby improving spectrum efficiency.

[0025] With reference to the first aspect or the second aspect, in a possible design, when the first signal is a reference signal for sensing, the at least two power allocation manners include at least one of a first power allocation manner, a second power allocation manner or a third power allocation manner.

[0026] Based on the possible design, when the first power allocation manner is a high-accuracy / high-resolution power allocation manner, the second power allocation manner is a low-false-alarm-rate power allocation manner, and the third power allocation manner is a power allocation manner for compromise between sensing accuracy / resolution and false alarm rate, the three power allocation manners can all ensure better sensing performance. Therefore, when the first signal is a reference signal for sensing, one of the three power allocation manners is used for power allocation, and sensing performance can be ensured.

[0027] With reference to the first aspect or the second aspect, in a possible design, when the first signal is carried in a data channel or a control channel, the at least two power allocation manners include at least one of a fourth power allocation manner, a fifth power allocation manner or a sixth power allocation manner.

[0028] Based on this possible design, when the fourth power allocation method is a power allocation method that compromises perception accuracy / resolution and spectral efficiency, the fifth power allocation method is a power allocation method that compromises perception accuracy / resolution, false alarm rate and spectral efficiency, and the sixth power allocation method is a power allocation method with high spectral efficiency, the fourth power allocation method and the fifth power allocation method can ensure better perception performance and communication performance, and the sixth power allocation method can ensure better communication performance. Therefore, when the first signal is carried on a data channel or a control channel, the first signal may be used for perception and communication, or may be used for communication, so that power allocation is performed using one of the three power allocation methods, which can ensure perception performance and communication performance, or can ensure communication performance.

[0029] In combination with the first aspect or the second aspect, in one possible design, the power allocation method corresponds to at least one power allocation coefficient group, the power allocation coefficient group includes multiple power allocation coefficients, and the power allocation coefficient is used to determine the power corresponding to the frequency domain resource group in the first bandwidth.

[0030] In combination with the first aspect or the second aspect, in one possible design, the second indication information indicates the power allocation method corresponding to the first signal, including: the second indication information indicates the index of the power allocation method corresponding to the first signal; or, the second indication information indicates the power allocation coefficient group corresponding to the power allocation method corresponding to the first signal.

[0031] In a third aspect, a communication device is provided for implementing various methods. The communication device includes modules, units, or means corresponding to the methods, wherein the modules, units, or means can be implemented in hardware, software, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules or units corresponding to the functions.

[0032] In some possible designs, the communication device may include a processing module and a transceiver module. The processing module may be configured to implement the processing functionality of any of the above aspects and any possible implementations thereof. The transceiver module may include a receiving module and a transmitting module, respectively configured to implement the receiving functionality and the transmitting functionality of any of the above aspects and any possible implementations thereof.

[0033] In some possible designs, the transceiver module may be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.

[0034] In a fourth aspect, a communication device is provided, comprising: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device executes the method described in any one of the above aspects.

[0035] In a fifth aspect, a communication apparatus is provided, which comprises: a processor and a communication interface; the communication interface is configured to communicate with a module outside the communication apparatus; the processor is configured to execute computer programs or instructions to enable the communication apparatus to perform the method in any of the above aspects.

[0036] In a sixth aspect, a communication apparatus is provided, which comprises: at least one processor; the processor is configured to execute computer programs or instructions stored in a memory to enable the communication apparatus to perform the method in any of the above aspects. The memory can be coupled with the processor, or can be independent of the processor.

[0037] In a seventh aspect, a communication apparatus (e.g., the communication apparatus can be a chip or a chip system) is provided, which comprises a processor configured to implement the functions involved in any of the first aspect or the second aspect.

[0038] In some possible designs, the communication apparatus comprises a memory configured to store necessary program instructions and data.

[0039] In some possible designs, when the apparatus is a chip system, the apparatus can be composed of a chip, or can comprise a chip and other discrete devices.

[0040] The communication apparatus in the third aspect to the seventh aspect can be the RAN node in the first aspect, or an apparatus (e.g., a chip or a chip system) included in the RAN node; or the communication apparatus in the third aspect to the seventh aspect can be the terminal in the second aspect, or an apparatus (e.g., a chip or a chip system) included in the terminal.

[0041] In an eighth aspect, a communication apparatus is provided, which can be the RAN node, or a module or unit (e.g., a chip, or a chip system, or a circuit) corresponding to the RAN node performing the method / operation / step / action described in the first aspect, or a module or unit that can be used in matching with the RAN node; or the communication apparatus can be the terminal, or a module or unit (e.g., a chip, or a chip system, or a circuit) corresponding to the terminal performing the method / operation / step / action described in the second aspect, or a module or unit that can be used in matching with the terminal.

[0042] It can be understood that, when the communication apparatus in any of the third aspect to the eighth aspect is a chip, the sending action / function of the communication apparatus can be understood as outputting information, and the receiving action / function of the communication apparatus can be understood as inputting information.

[0043] In a ninth aspect, a computer-readable storage medium is provided, which stores a computer program or instructions, when running on a communication device, causes the communication device to perform the method in any of the first aspect or the second aspect.

[0044] In a tenth aspect, a computer program product is provided, which contains instructions, when running on a communication device, causes the communication device to perform the method in any of the first aspect or the second aspect.

[0045] In an eleventh aspect, a communication system is provided, which can include a RAN node and a terminal. The RAN node is configured to implement the method in the first aspect and any of its implementation manners, and the terminal is configured to implement the method in the second aspect and any of its implementation manners.

[0046] The technical effects brought by the third aspect to the eleventh aspect and any of their implementation manners can refer to the technical effects brought by the first aspect or the second aspect and different implementation manners, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 A schematic diagram of a power allocation granularity provided by the present application is shown;

[0048] Figure 2 A schematic diagram of a perception communication integrated scenario provided by the present application is shown;

[0049] Figure 3 A schematic diagram of a perception or communication perception integrated scenario provided by the present application is shown;

[0050] Figure 4 A schematic diagram of another perception or communication perception integrated scenario provided by the present application is shown;

[0051] Figure 5 A schematic diagram of still another perception or communication perception integrated scenario provided by the present application is shown;

[0052] Figure 6 A flowchart of a communication method provided by the present application is shown;

[0053] Figure 7 A schematic diagram of another power allocation granularity provided by the present application is shown;

[0054] Figure 8 A schematic diagram of a high perception accuracy / resolution power allocation manner provided by the present application is shown;

[0055] Figure 9 A schematic diagram of a low false alarm rate power allocation manner provided by the present application is shown;

[0056] Figure 10 A diagram of a power allocation mode provided by the present application, which balances the sensing accuracy / resolution and the spectrum efficiency;

[0057] Figure 11 A diagram of a power allocation mode provided by the present application, which balances the sensing accuracy / resolution and the spectrum efficiency;

[0058] Figure 12 A diagram of a power allocation mode provided by the present application, which balances the sensing accuracy / resolution and the spectrum efficiency;

[0059] Figure 13 A diagram of a power allocation mode provided by the present application, which balances the sensing accuracy / resolution and the spectrum efficiency;

[0060] Figure 14 A diagram of a power allocation mode provided by the present application, which balances the sensing accuracy / resolution and the spectrum efficiency. DETAILED DESCRIPTION

[0061] In the description of the present application, unless otherwise specified, " / " represents that the objects before and after the " / " are in an "or" relationship, for example, A / B can represent A or B; "and / or" in the present application is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural.

[0062] In the description of the present application, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or the like means any combination of the items, including any combination of single item or multiple items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0063] In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, "first", "second", etc. are used to distinguish the same items or similar items with basically the same function and effect. Those skilled in the art can understand that "first", "second", etc. do not limit the quantity and execution order, and "first", "second", etc. also do not necessarily mean different.

[0064] In the embodiments of the present application, the words "exemplary" or "for example" are used to represent as an example, illustration, or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words "exemplary" or "for example" are intended to present the relevant concept in a specific manner, for ease of understanding.

[0065] It can be understood that the "embodiments" mentioned in the specification throughout mean that the specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It can be understood that in various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0066] It can be understood that in the present application, "…", "if" and "when" all refer to the corresponding processing under certain objective conditions, not limited by time, and do not require judgment actions when implementing, nor mean that there are other limitations.

[0067] It can be understood that some optional features in the embodiments of the present application can be implemented independently in some scenarios without relying on other features, such as the scheme currently based on, to solve the corresponding technical problems and achieve the corresponding effects. In some scenarios, it can also be combined with other features according to the needs. Correspondingly, the devices given in the embodiments of the present application can also realize these features or functions, which will not be described here.

[0068] In the present application, except for special description, the same or similar parts of each embodiment can be mutually referred. In various embodiments of the present application, if there is no special description and no logical conflict, the terms and / or descriptions of different embodiments are consistent and can be mutually referred, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship. The implementation modes of the present application described below do not constitute a limitation on the protection scope of the present application.

[0069] In a wireless communication system, the sending end modulates information on radio waves and sends it to the receiving end. The receiving end demodulates the signal carried on the radio wave to obtain the information. Generally, according to the different types of sending end and receiving end, the communication can be divided into different types. For example, the information sent by the network device to the terminal device is called downlink communication, and the information sent by the terminal device to the network device is called uplink communication.

[0070] There can be multiple duplex modes in a wireless communication system. For example, in a long term evolution (LTE), long term evolution advanced (LTE-A) communication system and a new radio (NR) system, duplex modes can be divided into a frequency division duplex (FDD) mode and a time division duplex (TDD) mode. For a wireless communication system operating in a TDD mode, a downlink carrier and an uplink carrier are carriers of the same carrier frequency; for a wireless communication system operating in an FDD mode, a downlink carrier and an uplink carrier can be carriers of different carrier frequencies.

[0071] In addition, a multiple access mode adopted by a wireless communication system is usually an orthogonal frequency division multiplexing access (OFDMA) mode. Its main feature is to divide transmission resources into mutually orthogonal resource elements (REs), and signals sent by a sending end are transmitted on the REs to a receiving end. Since different REs are mutually orthogonal, the receiving end can receive signals on each RE separately.

[0072] The technical principle of sensing is different from that of communication. Sensing refers to detecting parameters of a target in a physical environment, such as a position of the target and a speed of the target. In sensing, a sending end sends a radio wave in a specific direction, and a reflected wave is formed when the radio wave irradiates a target surface. A receiving end receives the reflected wave and processes it to obtain information about the position, speed, type, and the like of the target. Sensing can also be referred to as detection.

[0073] Generally, sensing modes can be divided into a self-sending and self-receiving sensing mode and a self-sending and other-receiving sensing mode. In the self-sending and self-receiving sensing mode, a sending end and a receiving end of a sensing signal are the same device, that is, a sensing station needs to both send a sensing signal and receive a signal reflected by the sensing signal on a target surface. In the self-sending and other-receiving sensing mode, a sending end and a receiving end of a sensing signal are different devices, that is, a sensing station A sends a sensing signal, and a signal reflected by the sensing signal on a target surface is received by a sensing station B.

[0074] Future business requirements and technology development trends have given rise to the integration of sensing and communication. With the integration of sensing and communication, future base stations and terminals will have the capability of both communication and sensing. For example, future base stations will have the ability to monitor the status of targets (such as low-altitude flying objects, traffic flows, and hotspots) within the coverage area, and can detect, locate, and identify targets. In addition, they can also have the ability to measure the real-time state of the natural environment, weather, and other conditions in the coverage area.

[0075] Future terminals will evolve into intelligent agents, and the capabilities of unmanned vehicles, drones, robots, and other intelligent devices will continue to increase. Intelligent agents may need to identify the pose, motion, and expression of people to enhance human-computer interaction, and also need to identify the motion state between multiple intelligent agents to improve intelligent collaboration. Further, intelligent agents may need to identify the attributes inside the human body, inside products, and inside articles to provide remote, AI-based unmanned physical examination, quality inspection, and security inspection services. These services further drive the integration of intelligent agent sensing and communication, not only improving the information interaction capabilities between intelligent agents and between intelligent agents and systems, but also reducing the size, power consumption, and cost of intelligent agent hardware devices, thereby promoting the popularization of new services.

[0076] For future 6th generation (6G) wireless networks, communication capabilities and sensing capabilities will coexist and evolve into an integrated sensing and communication (ISAC) technology direction, giving 6G networks the ability to sense the physical world at all times and in all places, fully meeting the needs of multi-dimensional sensory interworking, effectively supporting the wide-area expansion of communication capabilities, and opening up new application spaces beyond traditional mobile communication networks.

[0077] For example, ISAC is a typical architecture for the integration of sensing and communication. ISAC provides high-quality communication and high-precision sensing functions by sharing software and hardware resources in the same system, reducing costs and improving system performance. The communication function can be understood as traditional data transmission, and the sensing function includes ranging, speed measurement, angle measurement, imaging, detection, and the like.

[0078] Currently, when a sending end transmits a signal for sensing, it usually performs power allocation in the frequency domain with a fixed frequency domain resource granularity, such as a resource group (RG). One RG is composed of at least two resource blocks (RBs). Power allocation with an RG as the granularity can be understood as the power corresponding to the frequency domain resources in the same RG being equal, and the power on the frequency domain corresponding to different RGs being independently allocated. For example, as shown in FIG. 1, the power corresponding to the frequency domain resources in the same RG is equal, and the power on the frequency domain corresponding to different RGs is independently allocated. Figure 1As shown, in an example where an RG is composed of two RBs, the horizontal axis represents power, and the vertical axis represents RB. For example, the RBs in the same RG correspond to the same power, and the RBs in different RGs correspond to different powers.

[0079] However, the power allocation manner with the RG as the granularity may cause a decrease in sensing performance. For example, when the bandwidth occupied by a signal used for sensing is small, power allocation with a larger RG as the granularity may cause the power on the frequency domain resource occupied by the signal to be all the same, thereby causing the sensing performance to be impaired.

[0080] Based on this, the present application provides a communication method. In the method, when a signal is transmitted, a network can indicate one power allocation granularity from at least two power allocation granularities, so that a transceiver end can perform power allocation and transceive a signal based on the power allocation granularity indicated by the network. Since multiple power allocation granularities are provided, the network can flexibly select a power allocation granularity suitable for current signal transmission, improve the flexibility and rationality of power allocation, and thereby improve the sensing performance based on reasonable power allocation.

[0081] The technical solutions of the embodiments of the present application can be applied to various communication systems, which can be a third generation partnership project (3GPP) communication system, for example, a long term evolution (LTE) system, a fourth generation (4th generation, 4G) system such as an LTE system, a new radio (NR) system, a 5G system such as an NR system, a system in which an LTE and a 5G are hybrid networked, a non-terrestrial network (non-terrestrial network, NTN), or other next-generation communication systems such as a 6G communication system. The communication system can also be a non-3GPP communication system, which is not limited.

[0082] The technical solutions of the embodiments of the present application can be applied to various scenarios, such as a scenario in which a terminal communicates with a network, or a scenario in which a device-to-device (device-to-device, D2D), machine-to-machine (machine-to-machine, M2M), vehicle-to-everything (vehicle-to-everything, V2X) communication, or terminal-to-terminal direct communication is applied, or a sensing scenario or a communication-sensing integrated scenario.

[0083] In some possible implementation manners, in various scenarios to which the present application is applicable, a sensing sending end transmits a signal used for sensing, the signal generates a return signal through a target reflection, a receiving end receives the return signal, and then the position, speed, and the like of the target are sensed. The target can also be referred to as a sensed target.

[0084] Exemplarily, after receiving the echo signal, the perception receiving end obtains a receiving sequence based on the echo signal, performs correlation operation on the receiving sequence and a local sequence, and perceives the position, speed and other information of the target according to the result of the correlation operation, wherein the local sequence is a sequence used to generate the sending signal. The local sequence can be indicated by the perception sending end to the perception receiving end.

[0085] The correlation operation can be understood as a processing process between two sequences, including multiplication and addition operation between different elements of the two sequences. The correlation operation includes autocorrelation operation and cross-correlation operation. In addition, in the case of considering Doppler frequency offset, the autocorrelation of the sequence can also be called self ambiguity, and the cross-correlation between the sequences can also be called cross ambiguity. The correlation operation result of the sequence can be understood as an ambiguity function, and the perception can be performed based on the correlation information of the main lobe and the side lobe of the ambiguity function.

[0086] As a possible implementation, the signal can be used only for perception, for example, the signal can be a reference signal dedicated to perception. At this time, the signal can also be called a perception signal, a detection signal, a linear frequency modulation signal, a radar signal, a radar perception signal, a radar detection signal, or an environmental perception signal, etc.

[0087] Exemplarily, the perception signal can be an orthogonal frequency division multiplexing (OFDM) signal obtained after a specific sequence is modulated on a subcarrier. The specific sequence can be any one of the following sequences: Zadoff-Chu sequence (ZC sequence for short), pseudo-random sequence, predefined sequence, etc. The pseudo-random sequence includes any one of the following sequences: maximum linear feedback shift register sequence (m sequence for short), Gold sequence, etc. The predefined sequence can be a random data symbol, for example, a random data symbol modulated by quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), etc.

[0088] As another possible implementation, the signal can be used for both perception and communication, that is, the signal is used for both communication and perception. At this time, the signal can also be called a communication-perception fusion signal. Wherein, used for communication can be understood as that the signal carries communication data or communication reference signal sequence that needs to be transmitted between communication devices. For example, the signal can be a reference signal in communication (also can be called a communication reference signal or a communication reference signal sequence), or a signal carried in a data channel or a control channel (also can be called communication data).

[0089] Exemplarily, the data channel can include, but is not limited to, a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and the like. The control channel can include, but is not limited to, a physical downlink control channel (PDCCH), a physical uplink control channel (PUCCH), and the like.

[0090] Exemplarily, as Figure 2 shown, a perception communication integrated scenario applicable to the present application. In the scenario, a radio access network (RAN) node and a terminal can have communication functions and perception functions. The sending end of the signal for perception can be a terminal, or can be a RAN node. The perceived target can include, but is not limited to, mobile targets such as vehicles, low-altitude drones, pedestrians, and the like, and can also include stationary objects in the environment, such as buildings, ground, and the like.

[0091] Optionally, according to the perception mode, the perception scene or the communication-perception integrated scene can be divided into six scenarios as Figures 3 to 5 shown, wherein, Figures 3 to 5 Taking the perceived target as a vehicle as an example, of course, the target can also be other objects, which are not limited.

[0092] Referring to Figure 3 , in scenario 1, the sending end and the receiving end of the signal are the same radio access network (RAN) node; in scenario 2, the sending end and the receiving end of the signal are the same terminal. Exemplarily, in scenario 1 and scenario 2, the signal can be a perception signal.

[0093] Referring to Figure 4 , in scenario 3, the sending end of the signal is RAN node A, and the receiving end is another RAN node B. It is worth noting that the target in the environment and RAN node B can be the same device, or can be different devices. For example, when the target in the environment and RAN node B are the same device, the signal sent by RAN node A can be a perception-fusion signal, that is, RAN node A sends the perception-fusion signal for perception, and the perception-fusion signal also carries the communication data or communication reference sequence that RAN node A needs to transmit to RAN node B. When the target in the environment and RAN node B are not the same device, the signal sent by RAN node A can be a perception signal.

[0094] In scenario 4, the terminal A sends the signal to the terminal B. It is worth noting that the target in the environment and the terminal B can be the same device or different devices. For example, when the target in the environment and the terminal B are the same device, the signal sent by the terminal A can be a sense-and-communicate fusion signal, i.e., the terminal A sends the sense-and-communicate fusion signal for sensing, and the sense-and-communicate fusion signal also carries the communication data or the communication reference sequence that the terminal A needs to transmit to the terminal B. When the target in the environment and the terminal B are not the same device, the signal sent by the terminal A can be a sensing signal. In addition, the terminal A can also send a communication signal to the terminal B by using frequency division multiplexing or space division multiplexing, etc.

[0095] Referring to Figure 5 In scenario 5, the RAN node sends the signal to the terminal. It is worth noting that the target in the environment and the terminal can be the same device or different devices. For example, when the target in the environment and the terminal are the same device, the signal sent by the RAN node can be a sense-and-communicate fusion signal, i.e., the RAN node sends the sense-and-communicate fusion signal for sensing, and the sense-and-communicate fusion signal also carries the communication data or the communication reference sequence that the RAN node needs to transmit to the terminal. When the target in the environment and the terminal are not the same device, the signal sent by the RAN node can be a sensing signal. In addition, the RAN node can also send a communication signal to the terminal by using frequency division multiplexing or space division multiplexing, etc.

[0096] In scenario 6, the terminal sends the signal to the RAN node. It is worth noting that the target in the environment and the RAN node can be the same device or different devices. For example, when the target in the environment and the RAN node are the same device, the signal sent by the terminal can be a sense-and-communicate fusion signal, i.e., the terminal sends the sense-and-communicate fusion signal for sensing, and the sense-and-communicate fusion signal also carries the communication data or the communication reference sequence that the terminal needs to transmit to the RAN node. When the target in the environment and the RAN node are not the same device, the signal sent by the terminal can be a sensing signal. In addition, the terminal can also send a communication signal to the RAN node by using frequency division multiplexing or space division multiplexing, etc.

[0097] In a possible implementation, the RAN node can be deployed in a RAN. The RAN can be a 3GPP related cellular system, e.g., a 4G, 5G mobile communication system, or a future-oriented evolved system (e.g., a 6G mobile communication system). The RAN can also be an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (CRAN), or a WiFi system. The RAN can also be a communication system that combines two or more of the above systems.

[0098] The RAN node, which can also be referred to as an access network device, a RAN entity or an access node, etc., constitutes part of the communication system to help the terminal to achieve wireless access.

[0099] In a possible scenario, the RAN node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The RAN node can be a macro base station, a micro base station or an indoor station, a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in V2X technology can be a road side unit (RSU). All or part of the functions of the RAN node in this application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (e.g., a cloud platform). The RAN node in this application can also be a logical node, a logical module or software that can implement all or part of the functions of the RAN node.

[0100] In another possible scenario, a terminal is assisted by multiple RAN nodes to implement wireless access, and different RAN nodes respectively implement part of functions of a base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0101] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0102] A terminal can also be referred to as a terminal device, a UE mobile station, a mobile terminal, etc. The terminal can be widely applied to various scenarios, such as device-to-device (D2D) communication, V2X communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. Embodiments of this application do not limit the device form of the terminal.

[0103] It should be noted that the communication system and the communication scenario described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that with the evolution of network architecture and the appearance of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0104] It should be noted that in the following embodiments of the present application, the message names between the respective execution subjects, the names of the respective parameters, or the names of the respective information, etc. are only examples, and in other embodiments, other names can also be used. The method provided by the present application does not make specific limitations on this.

[0105] It can be understood that in the embodiments of the present application, the execution subject can be a terminal or a RAN node, and the terminal or the RAN node can perform part or all of the steps in the embodiments of the present application. These steps or operations are only examples, and the embodiments of the present application can also perform other operations or variations of various operations. In addition, the respective steps can be executed in different orders as presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application are executed.

[0106] It can be understood that the RAN node or the terminal is taken as an example of the execution subject in the present application, but the present application does not limit the execution subject of the interaction. For example, the method executed by the RAN node in the present application can also be executed by a module (such as a chip, a chip system, or a processor) applied to the RAN node, and can also be implemented by a logical node, a logical module or software capable of implementing all or part of the functions of the RAN node; the method executed by the terminal in the present application can also be executed by a module (such as a chip, a chip system, or a processor) applied to the terminal, and can also be implemented by a logical node, a logical module or software capable of implementing all or part of the functions of the terminal.

[0107] In addition, "sending information" in the present application can be understood as one device sending information to another device, or can also be understood as one logical module in a device sending information to another logical module. For example, "the RAN node sending information" can be understood as the RAN node sending information to another device (such as a terminal), or can be understood as a logical module 1 (such as a processing module) in the RAN node sending information to a logical module 2 (such as a transceiver module) in the RAN node.

[0108] In the present application, "receiving information" can be understood as a device receiving information from another device, or can also be understood as a logical module in a device receiving information from another logical module. For example, "terminal receiving information" can be understood as the terminal receiving information from another device (such as a RAN node), or can be understood as a logical module 1 (such as a processing module) in the terminal receiving information from a logical module 2 (such as a transceiver module) in the terminal.

[0109] In the present application, "sending information to (for example, a terminal)" or related illustrations in the drawings can be understood as that the destination of the information is the terminal. It can include directly or indirectly sending information to the terminal. "Receiving information from (for example, a RAN node)" or "receiving information from (for example, a RAN node)" or "receiving information sent by (for example, a RAN node)", or related illustrations in the drawings can be understood as that the source of the information is the RAN node, and can include directly or indirectly receiving information from the RAN node. The information between the source and the destination of the information sending can be processed as necessary, for example, format change, etc., but the destination can understand the valid information from the source. Similar expressions in the present application can be similarly understood, and will not be repeated here.

[0110] The communication method provided by the present application will be introduced below. As shown in the following figure, the communication method includes the following steps: Figure 6

[0111] S601, the RAN node determines the power allocation granularity corresponding to the first signal. Wherein, the first signal is a reference signal, or the first signal is a signal carried in a data channel or a control channel.

[0112] As a possible implementation, when the first signal is a reference signal, the first signal can be a sensing dedicated reference signal, at this time the first signal can be called a sensing signal; or the first signal can be a communication reference signal, at this time, the first signal can be used for communication, not for sensing, for example, communication can be carried out according to the communication reference signal, but sensing cannot be carried out according to the communication reference signal, or a more accurate sensing result cannot be obtained according to the communication reference signal, or the first signal can be used for communication and sensing. When the first signal is used for communication and sensing, the first signal can be called a communication and sensing fusion signal.

[0113] As another possible implementation, when the first signal is a signal carried in a data channel or a control channel, the first signal can be used for communication, not for sensing, at this time, the first signal can be called a communication signal; or the first signal can be used for communication and sensing, at this time, the first signal can be called a communication and sensing fusion signal.

[0114] ​The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities. The at least two power allocation granularities include at least one of a subcarrier, a subcarrier group (SCG), a resource block (RB), or a resource block group. That is, power allocation can be performed in units of subcarriers, subcarrier groups, resource blocks, or resource block groups.

[0115] As a possible implementation, the power allocation granularity corresponding to the first signal can be understood as a frequency domain power allocation granularity. The subcarrier, the subcarrier group, the resource block, and the resource block group can also be understood as types of power allocation granularity.

[0116] As a possible implementation, the subcarrier can be understood as the smallest granularity of frequency domain resources. For example, in an orthogonal frequency division multiplexing (OFDM) system, the frequency domain resources can be divided into a plurality of sub-resources, and each sub-resource in the frequency domain can be referred to as a subcarrier.

[0117] Optionally, the interval between the center positions or peak positions of two adjacent subcarriers in the frequency domain can be referred to as a subcarrier interval. For example, the subcarrier interval in the LTE system is 15 kHz, and the subcarrier interval in the NR system can be 15 kHz, 30 kHz, 60 kHz, or 120 kHz, etc.

[0118] As a possible implementation, a subcarrier group includes at least two subcarriers. For example, a subcarrier group can include 2, 3, 4, or 6 subcarriers, etc. Of course, the number of subcarriers included in a subcarrier group can also be other values, which are not limited in the present application.

[0119] As a possible implementation, a resource block includes a plurality of subcarriers that are continuous in the frequency domain. For example, in the LTE system and the NR system, a resource block includes 12 subcarriers. It can be understood that as the evolution of communication technology and communication systems, the number of subcarriers included in a resource block can also be other values, such as 10, 14, or 16, and of course can also be other values, which are not limited in the present application.

[0120] Optionally, the number of subcarriers included in a subcarrier group is different from the number of subcarriers included in a resource block. For example, the number of subcarriers included in a subcarrier group is less than the number of subcarriers included in a resource block.

[0121] As a possible implementation, a resource block group can also be referred to as an RG. A resource block group includes at least two resource blocks.

[0122] Optionally, the at least two power allocation granularities can be referred to as (or constitute) a power allocation granularity set. The power allocation granularity set includes at least one of the four power allocation granularities (i.e., subcarrier, subcarrier group, resource block, and resource block group). In addition, the power allocation granularity set can also include other power allocation granularities in addition to the four power allocation granularities.

[0123] As a possible implementation, the RAN node can determine the power allocation granularity corresponding to the first signal according to the size of the first bandwidth. For example, there is an association between the size of the first bandwidth and the power allocation granularity corresponding to the first signal. The first bandwidth is the bandwidth occupied by the first signal or the bandwidth scheduled by the RAN node for carrying the first signal. For example, when the first bandwidth is large, the type of the power allocation granularity corresponding to the first signal is a resource block or a resource block group; when the first bandwidth is small, the type of the power allocation granularity corresponding to the first signal is a subcarrier or a subcarrier group.

[0124] As another possible implementation, the RAN node can determine the power allocation granularity corresponding to the first signal according to the signal type of the first signal. For example, there is an association between the signal type of the first signal and the power allocation granularity corresponding to the first signal. The signal type of the first signal can include at least one of the following: a reference signal, a signal carried in a data signal, or a signal carried in a control channel. For example, when the first signal is a signal carried in a data channel or a control channel, the power allocation granularity corresponding to the first signal is large; when the first signal is a reference signal, the power allocation granularity corresponding to the first signal is small.

[0125] S602, the RAN node sends indication information to the terminal. Correspondingly, the terminal receives the indication information from the RAN node. The indication information indicates the power allocation granularity corresponding to the first signal.

[0126] As a possible implementation, the indication information can explicitly or implicitly indicate the power allocation granularity corresponding to the first signal. This will be described in detail in subsequent embodiments, which will not be described here.

[0127] As a possible implementation, the indication information can be carried in broadcast information, such as a system information block (SIB). Alternatively, the indication information can be carried in radio resource control (RRC) signaling, a media access control (MAC) control element (CE), or downlink control information (DCI).

[0128] S603, the terminal transmits or receives the first signal according to the indication information.

[0129] In a first possible implementation, when the terminal is a transmitter of the first signal, the terminal transmits the first signal according to the indication information. For example, the terminal can determine the power allocation granularity corresponding to the first signal according to the indication information, and then transmit the first signal according to the power allocation granularity corresponding to the first signal. For example, the terminal can determine the power corresponding to each subcarrier in the first bandwidth according to the power allocation granularity corresponding to the first signal, and then transmit the first signal in the first bandwidth according to the power corresponding to each subcarrier.

[0130] For example, when the power allocation granularity corresponding to the first signal is one resource block, as shown in (a) of FIG. 6, assuming that the first bandwidth includes four resource blocks, the terminal can allocate power to each resource block respectively according to the granularity of the resource block. Figure 7 For example, when the power allocation granularity corresponding to the first signal is one subcarrier group, and one subcarrier group includes six subcarriers, as shown in (b) of FIG. 6, assuming that the first bandwidth includes eight subcarrier groups, the terminal can allocate power to each subcarrier group respectively according to the granularity of the subcarrier group. Figure 7

[0131] When the terminal is a transmitter of the first signal, as a possible implementation, the receiver of the first signal can be the RAN node in steps S601 and S602. In this scenario, the RAN node receives the first signal according to the power allocation granularity corresponding to the first signal. For example, the RAN node can use a receiving algorithm matched with the power allocation granularity to receive the first signal, so as to improve the receiving performance.

[0132] When the terminal is a transmitter of the first signal, as another possible implementation, the receiver of the first signal can be another terminal. For convenience of description, when the transmitter and the receiver of the first signal are both terminals, the transmitter of the first signal is referred to as a first terminal, and the receiver of the first signal is referred to as a second terminal.

[0133] Optionally, when the receiver of the first signal is the second terminal, the RAN node or the first terminal can indicate the power allocation granularity corresponding to the first signal to the second terminal. The implementation of the second terminal receiving the first signal can refer to the foregoing description of the RAN receiving the first signal, which is not described herein again.

[0134] In a second possible implementation, when the terminal is a receiver of the first signal, the terminal receives the first signal according to the indication information. For example, the terminal can determine the power allocation granularity corresponding to the first signal according to the indication information, and then receive the first signal according to the power allocation granularity corresponding to the first signal. For example, the terminal can use a receiving algorithm matched with the power allocation granularity to receive the first signal, so as to improve the receiving performance.​

[0135] In the case that the terminal is the receiving end of the first signal, as one possible implementation, the sending end of the first signal can be the RAN node in steps S601 and S602. In this scenario, the RAN node sends the first signal according to the power allocation granularity corresponding to the first signal. The implementation of the RAN node sending the first signal can refer to the related description of the terminal sending the first signal in the first possible implementation described above, and will not be described here again.

[0136] In the case that the terminal is the receiving end of the first signal, as another possible implementation, the sending end of the first signal can be another terminal. For the convenience of description, in the case that the sending end and the receiving end of the first signal are both terminals, the sending end of the first signal is referred to as the first terminal, and the receiving end of the first signal is referred to as the second terminal.

[0137] Optionally, in the case that the sending end of the first signal is the first terminal, the RAN node also needs to indicate the power allocation granularity corresponding to the first signal to the first terminal before step S603. The implementation of the first terminal sending the first signal can refer to the related description of the terminal sending the first signal in the first possible implementation described above, and will not be described here again.

[0138] In one possible implementation, in the case that the first signal is used for sensing, such as the first signal being a sensing signal or a communication-sensing fusion signal, the receiving end receiving the first signal can also be understood as the receiving end receiving the echo signal of the first signal.

[0139] Optionally, in the case that the first signal is used for sensing, the receiving end of the first signal can process the first signal after receiving the first signal to determine the position, distance, speed, etc. of the target.

[0140] Based on the communication method of the present application, when performing signal transmission, the RAN node can indicate one power allocation granularity from at least two power allocation granularities, so that the transceiving end can determine the power corresponding to each subcarrier based on the power allocation granularity indicated by the RAN node, and then transmit or receive the signal according to the power corresponding to each subcarrier. Since the present application provides multiple power allocation granularities, the RAN node can flexibly select the power allocation granularity suitable for the current signal transmission, thereby improving the flexibility and rationality of power allocation, and improving the sensing performance based on reasonable power allocation.

[0141] The overall flow of the communication method provided by the present application is described above. The specific implementation of the indication information is introduced below. Illustratively, the indication information can be implemented in the following four ways:

[0142] Method one, the indication information indicates the type of the power allocation granularity corresponding to the first signal.

[0143] As a possible implementation, the indication information can directly indicate a power allocation granularity as the power allocation granularity corresponding to the first signal. For example, the indication information can be carried in a first field. A plurality of values of the first field correspond to a plurality of power allocation granularity types one by one. For example, the plurality of power allocation granularity types can be at least two of subcarrier, subcarrier group, resource block and resource block group.

[0144] As a first example, in the case that the plurality of power allocation granularity types include subcarrier, subcarrier group, resource block and resource block group, the correspondence between the value of the first field and the power allocation granularity type can be as shown in Table 1.

[0145] Table 1

[0146] Field value Power allocation granularity First value Subcarriers Second value Subcarrier groups Third value Resource blocks Fourth value Resource block groups

[0147] That is, in the case that the first field is set to the first value, the type of the power allocation granularity corresponding to the first signal is subcarrier; or, in the case that the first field is set to the second value, the type of the power allocation granularity corresponding to the first signal is subcarrier group; or, in the case that the first field is set to the third value, the type of the power allocation granularity corresponding to the first signal is resource block; or, in the case that the first field is set to the fourth value, the type of the power allocation granularity corresponding to the first signal is resource block group.

[0148] For example, the first value, the second value, the third value and the fourth value can be 0, 1, 2 and 3 respectively. Of course, the first value, the second value, the third value and the fourth value can also have other values, for example, the first value, the second value, the third value and the fourth value can be 3, 2, 1 and 0 respectively, or 3, 1, 2 and 0 respectively, or 0, 2, 1 and 3 respectively, etc., without limitation.

[0149] As a second example, in the case that the plurality of power allocation granularity types include three of subcarrier, subcarrier group, resource block or resource block group, the correspondence between the value of the first field and the power allocation granularity type can be as shown in at least one of Table 2 to Table 5.

[0150] Table 2

[0151] Field value Power allocation granularity First value Subcarriers Second value Subcarrier groups Third value Resource blocks

[0152] Table 3

[0153] Field value Power allocation granularity First value Subcarriers Second value Subcarrier groups Third value Resource block groups

[0154] Table 4

[0155] Field value Power allocation granularity First value Subcarriers Second value Resource blocks Third value Resource block groups

[0156] Table 5

[0157] Field value Power allocation granularity First value Subcarrier groups Second value Resource blocks Third value Resource block groups

[0158] For example, the first value, the second value and the third value can be 0, 1 and 2 respectively. Of course, the first value, the second value and the third value can also have other values, such as 1, 2 and 3 respectively, or 2, 1 and 0 respectively, or 3, 2 and 1 respectively, and the like, without limitation.

[0159] As a third example, when the plurality of power allocation granularity types include two of subcarrier, subcarrier group, resource block or resource block group, the correspondence between the value of the first field and the power allocation granularity type can be as shown in at least one of Table 6 to Table 11.

[0160] Table 6

[0161] Field value Power allocation granularity First value Subcarriers Second value Subcarrier groups

[0162] Table 7

[0163] Field value Power allocation granularity First value Subcarriers Second value Resource blocks

[0164] Table 8

[0165] Field value Power allocation granularity First value Subcarriers Second value Resource block groups

[0166] Table 9

[0167] Field value Power allocation granularity First value Subcarrier groups Second value Resource blocks

[0168] Table 10

[0169]

[0170]

[0171] Table 11

[0172] Field value Power allocation granularity First value Resource blocks Second value Resource block groups

[0173] For example, the first value and the second value can be 0 and 1 respectively. Of course, the first value and the second value can also have other values, such as 1 and 0 respectively, without limitation.

[0174] As another possible implementation, the indication information can indicate one power allocation granularity from a plurality of allocation granularities included in the set of power allocation granularities as the power allocation granularity corresponding to the first signal. For example, the indication information can be implemented by a bitmap. The indication information includes N bits, each bit corresponding to one type of power allocation granularity, and N is the total number of power allocation granularities included in the set of power allocation granularities. When a certain bit is set to a preset value, it indicates that the type of the power allocation granularity corresponding to the first signal is the type of power allocation granularity corresponding to the bit. The preset value can be, for example, "1" or "0", which is not limited.

[0175] For example, when the power allocation granularities included in the set of power allocation granularities are subcarriers, subcarrier groups, resource blocks, and resource block groups, and the preset value is 1, the indication information can include 4 bits, and the 4 bits correspond to subcarriers, subcarrier groups, resource blocks, and resource block groups from left to right, respectively. If the 4 bits are set to 0100, it indicates that the type of the power allocation granularity corresponding to the first signal is a subcarrier group.

[0176] As a possible implementation, in the first mode, the size of the power allocation granularity can be 1 power allocation granularity or a plurality of power allocation granularities. For example, when the power allocation granularity is a subcarrier, the size of the power allocation granularity can be 1 subcarrier or a plurality of subcarriers; when the power allocation granularity is a resource block, the size of the power allocation granularity can be 1 resource block or a plurality of resource blocks. For example, the size of the power allocation granularity can be predetermined by a protocol, or can be indicated in advance by a RAN node, or can be preset.

[0177] In the second mode, the indication information indicates the value of the power allocation granularity corresponding to the first signal. The value of the power allocation granularity can also be understood as the size of the power allocation granularity.

[0178] As a possible implementation, in this mode, the type of the power allocation granularity can be predetermined by a protocol, or can be indicated in advance by a RAN node, for example, the type of the power allocation granularity can be indicated by the above-mentioned first mode, or can be preset. For example, the protocol can agree that the type of the power allocation granularity is one of a subcarrier, a subcarrier group, a resource block, or a resource block group.

[0179] For example, if the power allocation granularity type is a resource block, one resource block includes 12 subcarriers, and the indication information indicates a value of 2, the power allocation granularity is 2 resource blocks; if the indication information indicates a value of 1, the power allocation granularity is 1 resource block; if the indication information indicates a value of 1 / 2, the power allocation granularity is 1 / 2 resource block, i.e., 6 subcarriers; if the indication information indicates a value of 1 / 6, the power allocation granularity is 1 / 6 resource block, i.e., 2 subcarriers; and if the indication information indicates a value of 1 / 12, the power allocation granularity is 1 / 12 resource block, i.e., 1 subcarrier.

[0180] As a possible implementation, the indication information indicating the value of the power allocation granularity corresponding to the first signal can include that the indication information includes the value of the power allocation granularity corresponding to the first signal, for example, the indication information is carried in the second field, and the value of the second field is the value of the power allocation granularity corresponding to the first signal.

[0181] Alternatively, the indication information indicating the value of the power allocation granularity corresponding to the first signal can include that the indication information is carried in the second field, and the value of the second field is associated with the value of the power allocation granularity corresponding to the first signal. For example, the association can be as shown in Table 12.

[0182] Table 12

[0183] Field value Power allocation granularity First value 2 RBs Second value 1 RB Third value 1 / 2 RB Fourth value 1 / 6 RB

[0184] For example, the first value, the second value, the third value, and the fourth value can be 0, 1, 2, and 3 respectively. Of course, the first value, the second value, the third value, and the fourth value can also have other values, for example, the first value, the second value, the third value, and the fourth value can be 3, 2, 1, and 0 respectively, or 3, 1, 2, and 0 respectively, or 0, 2, 1, and 3 respectively, and the like, without limitation.

[0185] In the third mode, there is an association between the number of frequency domain resource units occupied by the signal and the power allocation granularity, and the indication information indicates the number of frequency domain resource units occupied by the first signal. The association between the number of frequency domain resource units occupied by the signal and the power allocation granularity includes an association between the number of frequency domain resource units occupied by the first signal and the power allocation granularity corresponding to the first signal.

[0186] As a possible implementation, the frequency domain resource unit can be an RB, a resource block group, or the like. The number of frequency domain resource units occupied by the first signal can be scheduled by the RAN node. The association between the number of frequency domain resource units occupied by the signal and the power allocation granularity can be defined by a protocol or can be pre-configured by the RAN node, without limitation.

[0187] As a possible implementation, taking the frequency domain resource unit as an RB as an example, the association relationship between the number of frequency domain resource units occupied by the signal and the power allocation granularity may include at least one item shown in Table 13.

[0188] Table 13

[0189] Number of RBs occupied by the signal X Power allocation granularity X is greater than or equal to the fifth value 2 RBs X is less than the fifth value and greater than or equal to the sixth value 1 RB X is less than the sixth value and greater than or equal to the fifth value 0.5 RB X is less than the seventh value 1 subcarrier

[0190] That is, the association between the number of frequency domain resource units occupied by the signal and the power allocation granularity may include at least one of the following: when the number of RBs occupied by the signal is greater than or equal to the fifth value, the power allocation granularity is 2 RBs; when the number of RBs occupied by the signal is less than the fifth value and greater than or equal to the sixth value, the power allocation granularity is 1 RB; when the number of RBs occupied by the signal is less than the sixth value and greater than or equal to the seventh value, the power allocation granularity is 0.5 RB; when the number of RBs occupied by the signal is less than the seventh value, the power allocation granularity is 1 subcarrier.

[0191] For example, the fifth value, the sixth value, and the seventh value may be 50, 25, and 10, respectively. Of course, the fifth value, the sixth value, and the seventh value may also have other values, such as 60, 35, 20, etc., respectively. This application does not limit the specific values ​​of the fifth value, the sixth value, and the seventh value.

[0192] Exemplarily, when the fifth value, the sixth value and the seventh value are 50, 25 and 10 respectively, the association between the number of frequency domain resource units occupied by the above signal and the power allocation granularity may include at least one item shown in Table 14.

[0193] Table 14

[0194] Number of RBs occupied by the signal X Power allocation granularity X≥50 2 RBs 25≤X<50 1 RB 10≤X<25 0.5 RB X<10 1 subcarrier

[0195] Based on the example shown in Table 14, if the number of RBs occupied by the first signal is greater than or equal to 50, the power allocation granularity corresponding to the first signal is 2 RBs; if the number of RBs occupied by the first signal is less than 50 and greater than or equal to 25, the power allocation granularity corresponding to the first signal is 1 RB; if the number of RBs occupied by the first signal is less than 25 and greater than or equal to 10, the power allocation granularity corresponding to the first signal is 0.5 RB; if the number of RBs occupied by the first signal is less than 10, the power allocation granularity corresponding to the first signal is 1 subcarrier.

[0196] It should be noted that in the association relationship shown in Table 13, the case where X is equal to a certain value and the case where X is greater than a certain value are described as parallel cases. In addition, the case where X is equal to a certain value and the case where X is less than a certain value can also be taken as parallel cases. For example, the association relationship between the number of frequency domain resource units occupied by the signal and the power allocation granularity can also include at least one of the following shown in Table 15.

[0197] Table 15

[0198] Number of RBs occupied by the signal X Power allocation granularity X is greater than the fifth value 2 RBs X is less than or equal to the fifth value and greater than the sixth value 1 RB X is less than or equal to the sixth value and greater than the fifth value 0.5 RB X is less than or equal to the seventh value 1 subcarrier

[0199] In this way three, the power allocation granularity corresponding to the first signal can be determined based on the number of frequency domain resource units occupied by the first signal. Since the RAN node needs to schedule the frequency domain resource units to transmit the first signal when the first signal is transmitted, the scheduling information of the first signal can be reused to indicate the power allocation granularity corresponding to the first signal, thereby saving signaling overhead.

[0200] In way four, there is an association relationship between the signal type of the signal and the power allocation granularity, and the indication information indicates the signal type of the first signal. The association relationship between the signal type of the signal and the power allocation granularity includes an association relationship between the signal type of the first signal and the power allocation granularity corresponding to the first signal.

[0201] As a possible implementation, the signal type of the signal includes at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel. Further, the reference signal can be divided into a reference signal for sensing and communication, a reference signal for sensing but not for communication (also known as a sensing dedicated reference signal, or a sensing signal).

[0202] As a possible implementation, the association relationship between the signal type of the signal and the power allocation granularity can include at least one of the following shown in Table 16.

[0203] Table 16

[0204] Signal type of the signal Power allocation granularity Signal carried in a data channel or a control channel 2 RBs Reference signal for sensing and communication 1 RB Reference signal dedicated for sensing 0.5 RB

[0205] That is, the association relationship between the signal type of the signal and the power allocation granularity can include at least one of the following: in the case where the signal type is a signal carried in a data channel or a control channel, the power allocation granularity is 2 RBs; in the case where the signal type is a reference signal and the reference signal is used for sensing and communication, the power allocation granularity is 1 RB; in the case where the signal type is a reference signal and the signal is dedicated for sensing, the power allocation granularity is 0.5 RB.

[0206] In the fourth mode, as a possible implementation, the signal type of the first signal sent or received by the terminal in step S603 is the signal type indicated by the indication information.

[0207] Through the fourth mode, the power allocation granularity corresponding to the first signal can be determined based on the signal type of the first signal. Since the RAN node can indicate the signal type of the first signal when scheduling the transmission of the first signal, the scheduling information of the first signal can be reused to indicate the power allocation granularity corresponding to the first signal, thereby saving signaling overhead.

[0208] It should be noted that the above four modes can be used independently or in combination. For example, mode one and mode two can be combined to indicate the type and size of the power allocation granularity. Mode three and mode four can also be combined, for example, the number of frequency domain resource units occupied by the signal and the signal type of the signal are used to indicate the power allocation granularity. Of course, there can be other combination modes, which are not limited by the present application.

[0209] In a possible implementation, in addition to indicating the power allocation granularity, the RAN node can also indicate the power allocation mode. For convenience of description, the indication information indicating the power allocation granularity is referred to as first indication information, and the information indicating the power allocation mode is referred to as second indication information. That is, before step S603, the RAN node can send the second indication information, and correspondingly, the terminal receives the second indication information. The second indication information indicates the power allocation mode corresponding to the first signal. The power allocation mode corresponding to the first signal is used to determine the power corresponding to the frequency domain resource group in the first bandwidth.

[0210] As a possible implementation, the power allocation mode corresponding to the first signal is one of at least two power allocation modes. The at least two power allocation modes include at least one of a first power allocation mode, a second power allocation mode, a third power allocation mode, a fourth power allocation mode, a fifth power allocation mode, or a sixth power allocation mode.

[0211] Among the six power allocation modes, the power corresponding to all frequency domain resource groups in the bandwidth is not completely the same, that is, among the power corresponding to all frequency domain resource groups, at least two different powers exist. For example, the size of the frequency domain resource group is equal to the size of the power allocation granularity. For example, when the power allocation granularity is 2 resource blocks, the frequency domain resource group includes 2 resource blocks; when the power allocation granularity is 1 subcarrier, the frequency domain resource group includes 1 subcarrier. The six power allocation modes are described below.

[0212] 1. First power allocation mode:

[0213] The first power allocation manner comprises: from an edge frequency domain resource group of the bandwidth to a center frequency domain resource group of the bandwidth, the power allocation priority corresponding to the frequency domain resource group decreases in turn.

[0214] As a possible implementation, the bandwidth refers to a bandwidth occupied by the first signal, or a bandwidth scheduled by the RAN node for carrying the first signal.

[0215] As a possible implementation, the edge frequency domain resource group of the bandwidth is a frequency domain resource group with the lowest or highest frequency in the bandwidth. The frequency can be the lowest frequency, the highest frequency, or the center frequency of the frequency domain resource group.

[0216] As a possible implementation, the center frequency domain resource group of the bandwidth is a frequency domain resource group located in the middle of the bandwidth. In the case where the bandwidth comprises an even number of frequency domain resource groups, there are two center frequency domain resource groups; in the case where the bandwidth comprises an odd number of frequency domain resource groups, there is one center frequency domain resource group.

[0217] For example, the bandwidth comprises 6 frequency domain resource groups, and the 6 frequency domain resource groups are numbered #1-#6 in order of frequency from low to high, the edge frequency domain resource group is frequency domain resource group #1 and frequency domain resource group #6, and the center frequency domain resource group is frequency domain resource group #3 and frequency domain resource group #4. Alternatively, the bandwidth comprises 7 frequency domain resource groups, and the 7 frequency domain resource groups are numbered #1-#7 in order of frequency from low to high, the edge frequency domain resource group is frequency domain resource group #1 and frequency domain resource group #7, and the center frequency domain resource group is frequency domain resource group #4.

[0218] As a possible implementation, in the first power allocation manner, there is a frequency domain resource group to which no power is allocated. For example, the frequency domain resource group to which no power is allocated is not an edge frequency domain resource group.

[0219] As a possible implementation, in the first power allocation manner, the power corresponding to the frequency domain resource group to which the power is allocated is the same; or the power corresponding to the frequency domain resource group to which the power is allocated is different, for example, the power corresponding to two frequency domain resource groups symmetric about the center frequency domain resource group to which the power is allocated is the same, and the power corresponding to two frequency domain resource groups asymmetric about the center frequency domain resource group to which the power is allocated is different.

[0220] Optionally, in the embodiments of the present application, the two frequency domain resource groups being symmetrical about the center frequency domain resource group can be understood as: the difference between the index of the frequency domain resource group A and the index of the center frequency domain resource group is the same as the difference between the index of the frequency domain resource group B and the index of the center frequency domain resource group; or, it can also be understood as: the difference between the frequency of the frequency domain resource group A and the frequency of the center frequency domain resource group is the same as the difference between the frequency of the frequency domain resource group B and the frequency of the center frequency domain resource group. The frequency of the frequency domain resource group can be the lowest frequency, the highest frequency or the center frequency of the frequency domain resource group.

[0221] For example, the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in the order of frequency from low to high. Assuming that the frequency domain resource group #1, the frequency domain resource group #2, the frequency domain resource group #5 and the frequency domain resource group #6 are allocated power, and the frequency domain resource group 3 and the frequency domain resource group 4 are not allocated power, then as shown in (a) of FIG. 6, the power corresponding to the frequency domain resource group #1, the frequency domain resource group #2, the frequency domain resource group #5 and the frequency domain resource group #6 can be the same; or as shown in (b) of FIG. 6, the frequency domain resource group #1 and the frequency domain resource group #6 are symmetrical about the center frequency domain resource group, and the power corresponding to the two can be the same (denoted as power 1); the frequency domain resource group #2 and the frequency domain resource group #5 are symmetrical about the center frequency domain resource group, and the power corresponding to the two can be the same (denoted as power 2); and the power 1 and the power 2 can be different. The dashed line indicates that the power is not allocated. Figure 8 Figure 8

[0222] As a first possible implementation, the power allocation priority of the frequency domain resource groups decreases in turn from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, which can also be understood as: starting from the edge frequency domain resource group of the bandwidth, the power is allocated to the frequency domain resource groups in the order of increasing or decreasing frequency, until the power allocation is completed.

[0223] For example, the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in the order of frequency from low to high. Then, the power can be allocated to the frequency domain resource group #1 and the frequency domain resource group #6 first, and then to the frequency domain resource group #2 and the frequency domain resource group #5, and so on, until the power allocation is completed. The power corresponding to the frequency domain resource group #1 and the frequency domain resource group #6 can be the same, and the power corresponding to the frequency domain resource group #2 and the frequency domain resource group #5 can be the same. The power corresponding to the frequency domain resource group #1 and the frequency domain resource group #2 can be the same or different.

[0224] ​​Optionally, each frequency domain resource group can correspond to a power threshold, which can be understood as a power upper limit. When power is allocated based on the first power allocation manner, the power value allocated to the frequency domain resource group with the highest priority can be the same as the power threshold corresponding to the frequency domain resource group. For the frequency domain resource group with the next highest priority, if the remaining power value is greater than or equal to the power threshold corresponding to the frequency domain resource group, the power value allocated to the frequency domain resource group can be the same as the power threshold corresponding to the frequency domain resource group; if the remaining power value is less than the power threshold corresponding to the frequency domain resource group, the power value allocated to the frequency resource unit is the remaining power value. Wherein, the power thresholds corresponding to different resource units can be the same or different, which is not limited.

[0225] For example, the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in order of frequency from low to high. The power allocated to the frequency domain resource group #1 and the frequency domain resource group #6 can be equal to the power threshold corresponding to the frequency domain resource group. When allocating power to the frequency domain resource group #2 and the frequency domain resource group #5, if the remaining power is greater than or equal to the sum of the power thresholds corresponding to the two, the power allocated to the two is the same as the power threshold corresponding to the two; if the remaining power is less than the sum of the power thresholds corresponding to the two, the power allocated to the two is less than the power threshold corresponding to the two. After allocating power to the frequency domain resource group #2 and the frequency domain resource group #5, if there is still remaining power, the power is allocated to other frequency domain resource groups until the power allocation is completed.

[0226] As a second possible implementation, from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, the power allocation priority of the frequency domain resource group decreases in turn, which can also be understood as: when the power allocated to the frequency domain resource group is the same, first determine the number N of frequency domain resource groups that can be allocated to power, and then determine that the N frequency domain resource groups include N1 frequency domain resource groups starting from the frequency lowest edge frequency domain resource group and N2 frequency domain resource groups starting from the frequency highest edge frequency domain resource group.

[0227] Wherein, N1+N2=N. When N is even, N1=N2=N / 2. When N is odd, Or, Or, Or,

[0228] For example, the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in order of frequency from low to high. The number N of frequency domain resource groups that can be allocated to power is 4, then the frequency domain resource group #1, the frequency domain resource group #6, the frequency domain resource group #2 and the frequency domain resource group #5 are allocated to power, and the power of the four is the same.

[0229] Based on the first power allocation method described above, power is preferentially allocated to edge frequency domain resource groups, which can minimize the main lobe width of the signal's ambiguity function. Since a narrower main lobe width generally results in higher perceptual accuracy and resolution, this method can maximize perceptual accuracy and resolution. Therefore, the first power allocation method can also be referred to as a high-precision / high-resolution power allocation method.

[0230] 2. Second power distribution method:

[0231] The second power allocation method includes increasing the power corresponding to the frequency domain resource groups from the edge frequency domain resource groups of the bandwidth to the center frequency domain resource groups of the bandwidth. The implementation of the bandwidth, edge frequency domain resource groups, and center frequency domain resource groups can refer to the relevant description of the first power allocation method above and will not be repeated here.

[0232] As a possible implementation, when there are multiple center frequency domain resource groups in the bandwidth, the powers corresponding to the multiple center frequency domain resource groups are the same.

[0233] As a possible implementation, the power corresponding to the two frequency domain resource groups that are symmetrical about the center frequency domain resource group is the same. Alternatively, the power corresponding to the two frequency domain resource groups that are symmetrical about the center frequency domain resource group is different. The implementation of the two frequency domain resource groups being symmetrical about the center frequency domain resource group can refer to the relevant description of the first power allocation method above and will not be repeated here.

[0234] For example, the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are numbered #1-#6 in order from low to high frequency, as shown in FIG. Figure 9 As shown in (a), the central frequency domain resource groups are frequency domain resource group #3 and frequency domain resource group #4, and the corresponding powers of the two are the same. Frequency domain resource group #1 and frequency domain resource group #6 are symmetrical about the central frequency domain resources, and the corresponding powers of the two can be the same (denoted as power 1). Frequency domain resource group #2 and frequency domain resource group #5 are symmetrical about the central frequency domain resources, and the corresponding powers of the two can be the same (denoted as power 2), and power 1 is less than power 2.

[0235] Or, as Figure 9 As shown in (b), the central frequency domain resource groups are frequency domain resource group #3 and frequency domain resource group #4, and their corresponding powers are the same. The power corresponding to frequency domain resource group #2 is greater than the power corresponding to frequency domain resource group #1, and the power corresponding to frequency domain resource group #5 is greater than the power corresponding to frequency domain resource group #6. The power corresponding to frequency domain resource group #1 and frequency domain resource group #6 is different, and the power corresponding to frequency domain resource group #2 and frequency domain resource group #5 is different.

[0236] As a possible implementation, the power corresponding to the frequency domain resource group increases successively from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth. In other words, for the frequency domain resource group higher than the center frequency domain resource group, the higher the frequency, the lower the corresponding power, and the lower the frequency, the higher the corresponding power. For the frequency domain resource group lower than the center frequency domain resource group, the higher the frequency, the higher the corresponding power, and the lower the frequency, the lower the corresponding power.

[0237] Based on the second power allocation manner, the frequency domain resource group located in the middle of the bandwidth is allocated a higher power, and the frequency domain resource group located at the edge of the bandwidth is allocated a lower power, which can make the peak-to-sidelobe ratio of the signal ambiguity function as low as possible, thereby reducing the perception false alarm rate. Therefore, the second power allocation manner can also be referred to as a low false alarm rate power allocation manner.

[0238] 3. Third power allocation manner:

[0239] The third power allocation manner includes that the power corresponding to the frequency domain resource group increases successively from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth. That is, the third power allocation manner is similar to the second power allocation manner, and the difference between the two is that the power corresponding to the same frequency domain resource group is different when the second power allocation manner and the third power allocation manner are used for power allocation.

[0240] Taking any frequency domain resource group (denoted as a first frequency domain resource group) in the bandwidth as an example, when the second power allocation manner is used for power allocation, the power corresponding to the first frequency domain resource group is a first power; when the third power allocation manner is used for power allocation, the power corresponding to the first frequency domain resource group is a second power. The first power and the second power are different. The remaining implementations of the third power allocation manner can refer to the related descriptions of the second power allocation manner, and will not be described here.

[0241] For example, for the first frequency domain resource group, the first power allocated by the second power allocation manner is greater than a first threshold, and the second power allocated by the third power allocation manner is less than the first threshold.

[0242] As a possible implementation, the difference between the third power allocation manner and the second power allocation manner is that when the second power allocation manner is used for power allocation, the difference between the maximum power and the minimum power among the powers corresponding to all frequency domain resource groups included in the bandwidth is less than a second threshold, and when the third power allocation manner is used for power allocation, the difference between the maximum power and the minimum power among the powers corresponding to all frequency domain resource groups included in the bandwidth is greater than the second threshold.

[0243] The third power allocation method described above can achieve a relatively narrow mainlobe of the signal's ambiguity function and a low peak-to-sidelobe ratio, thereby achieving an optimal compromise between perception accuracy, perception resolution, and false alarm rate. Specifically, the third power allocation method can be described as a power allocation method that achieves a compromise between perception accuracy, perception resolution, and false alarm rate.

[0244] 4. The fourth power distribution method:

[0245] The fourth power allocation method includes: from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, the power corresponding to the frequency domain resource group decreases in sequence. Among them, the implementation of the bandwidth, the edge frequency domain resource group, and the center frequency domain resource group can refer to the relevant description of the first power allocation method above, and will not be repeated here.

[0246] As a possible implementation, when there are multiple center frequency domain resource groups in the bandwidth, the powers corresponding to the multiple center frequency domain resource groups are the same.

[0247] As a possible implementation, the power corresponding to the two frequency domain resource groups that are symmetrical about the center frequency domain resource group is the same. Alternatively, the power corresponding to the two frequency domain resource groups that are symmetrical about the center frequency domain resource group is different. The implementation of the two frequency domain resource groups being symmetrical about the center frequency domain resource group can refer to the relevant description of the first power allocation method above and will not be repeated here.

[0248] For example, the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are numbered #1-#6 in order from low to high frequency, as shown in FIG. Figure 10 As shown in (a), the central frequency domain resource groups are frequency domain resource group #3 and frequency domain resource group #4, and the corresponding powers of the two are the same. Frequency domain resource group #1 and frequency domain resource group #6 are symmetrical about the central frequency domain resources, and the corresponding powers of the two can be the same (denoted as power 1). Frequency domain resource group #2 and frequency domain resource group #5 are symmetrical about the central frequency domain resources, and the corresponding powers of the two can be the same (denoted as power 2), and power 1 is greater than power 2.

[0249] Or, as Figure 10 As shown in (b), the central frequency domain resource groups are frequency domain resource group #3 and frequency domain resource group #4, and their corresponding powers are the same. The power corresponding to frequency domain resource group #2 is less than the power corresponding to frequency domain resource group #1, and the power corresponding to frequency domain resource group #5 is less than the power corresponding to frequency domain resource group #6. The power corresponding to frequency domain resource group #1 and frequency domain resource group #6 is different, and the power corresponding to frequency domain resource group #2 and frequency domain resource group #5 is different.

[0250] As a possible implementation, the power corresponding to the frequency domain resource group decreases in turn from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth. In other words, for the frequency domain resource group higher than the center frequency domain resource group, the higher the frequency, the higher the corresponding power, and the lower the frequency, the lower the corresponding power. For the frequency domain resource group lower than the center frequency domain resource group, the higher the frequency, the lower the corresponding power, and the lower the frequency, the higher the corresponding power.

[0251] Based on the fourth power allocation manner described above, the frequency domain resource group located in the middle of the bandwidth is allocated a lower power, and the frequency domain resource group located at the edge of the bandwidth is allocated a higher power, which can make the main lobe width of the ambiguity function of the signal relatively narrow, and the distortion of the signal is relatively small, thereby achieving a better compromise between the perception accuracy / perception resolution and the spectrum efficiency, that is, while ensuring the perception accuracy / perception resolution, the spectrum efficiency can be ensured. Therefore, the fourth power allocation manner can also be referred to as a power allocation manner for compromising the perception accuracy / resolution and the spectrum efficiency.

[0252] 5. Fifth power allocation manner:

[0253] The fifth power allocation manner includes that the power corresponding to the frequency domain resource group decreases in turn from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth. That is, the fifth power allocation manner is similar to the fourth power allocation manner, and the difference between the two is that for the same frequency domain resource group, the power corresponding to the frequency domain resource group is different when the fourth power allocation manner and the fifth power allocation manner are used for power allocation, respectively.

[0254] Taking any frequency domain resource group (denoted as a second frequency domain resource group) in the bandwidth as an example, when the fourth power allocation manner is used for power allocation, the power corresponding to the second frequency domain resource group is a third power; when the fifth power allocation manner is used for power allocation, the power corresponding to the second frequency domain resource group is a fourth power. The third power and the fourth power are different. The remaining implementation of the fifth power allocation manner can be referred to the related description of the fourth power allocation manner, and will not be described here.

[0255] Based on the fifth power allocation manner described above, the main lobe width of the ambiguity function of the signal can be relatively narrow and the peak side lobe can be relatively low, and at the same time, the distortion of the signal is relatively small, thereby achieving a better compromise between the perception accuracy / perception resolution, the false alarm rate and the spectrum efficiency, that is, while ensuring the perception accuracy / perception resolution, a lower false alarm rate and a higher spectrum efficiency can be ensured. Therefore, the fifth power allocation manner can also be referred to as a power allocation manner for compromising the perception accuracy / resolution, the false alarm rate and the spectrum efficiency.

[0256] 6. Sixth power allocation manner:

[0257] The sixth power allocation manner includes: the power corresponding to the frequency domain resource group is related to the channel quality corresponding to the frequency domain resource group. For example, the channel quality corresponding to the frequency domain resource group can be understood as: the quality of the channel that the frequency domain resource group will experience.

[0258] As a possible implementation, the power corresponding to the frequency domain resource group is positively related to the channel quality corresponding to the frequency domain resource group. For example, if the channel quality corresponding to the frequency domain resource group is better, the power corresponding to the frequency domain resource group is larger; if the channel quality corresponding to the frequency domain resource group is worse, the power corresponding to the frequency domain resource group is smaller or 0.

[0259] For example, taking a bandwidth including 6 frequency domain resource groups and the 6 frequency domain resource groups numbered in order from low to high as #1-#6 as an example, if the channel quality corresponding to the 6 frequency domain resource groups satisfies: frequency domain resource group #4>frequency domain resource group #6>frequency domain resource group #5=frequency domain resource group #2>frequency domain resource group #1>frequency domain resource group #3, the power corresponding to the 6 frequency domain resource groups can be as shown in the following table. Figure 11 Figure 11 For example, taking a bandwidth including 6 frequency domain resource groups and the 6 frequency domain resource groups numbered in order from low to high as #1-#6 as an example, if the channel quality corresponding to the 6 frequency domain resource groups satisfies: frequency domain resource group #4>frequency domain resource group #6>frequency domain resource group #5=frequency domain resource group #2>frequency domain resource group #1>frequency domain resource group #3, the power corresponding to the 6 frequency domain resource groups can be as shown in the following table.

[0260] Based on the above-mentioned sixth power allocation manner, based on the channel quality corresponding to the frequency domain resource group, a higher power is allocated to the frequency domain resource group with better channel quality, which can improve the spectrum efficiency. Therefore, the sixth power allocation manner can also be called a power allocation manner with high spectrum efficiency.

[0261] In a possible implementation, each power allocation manner can correspond to at least one power allocation coefficient set. The power allocation coefficient set includes a plurality of power allocation coefficients, and the power allocation coefficient can be used to determine the power corresponding to the frequency domain resource group. The power allocation coefficient is a real number.

[0262] It can be understood that in the case that a power allocation manner corresponds to a plurality of power allocation coefficient sets, it is indicated that a plurality of power combinations can be determined based on the power allocation manner. Subsequently, a suitable power combination can be selected from the plurality of power combinations according to actual conditions.

[0263] Optionally, the plurality of power allocation coefficients included in the power allocation coefficient set correspond to the plurality of frequency domain resource groups one by one, and each power allocation coefficient represents the relative value of the power allocated to the corresponding frequency domain resource group.

[0264] ​For example, with the power allocation coefficient set {1, 0.8, 0.6, 0.6, 0.8, 1}, the 6 power allocation coefficients in the power allocation coefficient set respectively correspond to the frequency domain resource group #1 to the frequency domain resource group #6, the power allocation coefficient set can represent that the ratio of the power corresponding to the frequency domain resource group #1 to the power corresponding to the frequency domain resource group #2 is 1:0.8, the ratio of the power corresponding to the frequency domain resource group #1 to the power corresponding to the frequency domain resource group #3 is 1:0.6, the ratio of the power corresponding to the frequency domain resource group #2 to the power corresponding to the frequency domain resource group #3 is 0.8:0.6, and so on.

[0265] Optionally, the power allocation coefficient set corresponding to each power allocation manner can be pre-defined by a protocol or determined by the RAN node, which is not limited in the present application.

[0266] Optionally, the absolute value of the power corresponding to each frequency domain resource group can be determined according to the total transmission power of the signal and the power allocation coefficient set corresponding to a certain power allocation manner. For example, with the power allocation coefficient set {1, 0.8, 0.6, 0.6, 0.8, 1}, the 6 power allocation coefficients in the power allocation coefficient set respectively correspond to the frequency domain resource group #1 to the frequency domain resource group #6, if the total transmission power is P, the powers corresponding to the frequency domain resource group #1 to the frequency domain resource group #6 are respectively:

[0267] The perception accuracy is mainly used to represent the deviation between the perception result of the target and the ideal true result. For example, in distance perception, if the distance between the perceived target and the perception device is obtained as 6 meters (meter, m) through perception, and the actual situation is that the distance between the perceived target and the perception device is 5 m, then the perception error and the perception accuracy are 1 m. The perception device can be understood as a device that performs perception. The perception resolution is mainly used to represent the minimum ability to distinguish two different targets. For example, in distance perception, a distance resolution of 1 m can be understood as that when the distance between two perceived targets is greater than 1 m, the perception device can distinguish that there are two targets; when the distance between two perceived targets is less than 1 m, the perception device cannot distinguish that there are two targets. The false alarm rate is mainly used to represent the performance of falsely determining a false target in the case where there is no target. The spectrum efficiency is mainly used to represent the utilization efficiency of the frequency spectrum for communication. The coverage performance is mainly used to represent the utilization efficiency of power for communication.

[0268] Optionally, the at least two power allocation manners can be referred to as (or composed of) a power allocation manner set. The power allocation manner set includes at least one of the above six power allocation manners (the first power allocation manner to the sixth power allocation manner). In addition, the power allocation manner set can also include other power allocation manners in addition to the above six power allocation manners.

[0269] In a possible implementation, the power allocation manner set can also be different in the case that the type or function of the first signal is different.

[0270] For example, in the case that the first signal is a reference signal for sensing, the power allocation manner set includes at least one of the first power allocation manner, the second power allocation manner or the third power allocation manner. Further, the power allocation manner set can also be different for different types of reference signals for sensing. For example, in the case that the first signal is an uplink reference signal for sensing, the power allocation manner set includes at least one of the first power allocation manner or the second power allocation manner; in the case that the first signal is a downlink reference signal for sensing, the power allocation manner set includes at least one of the second power allocation manner or the third power allocation manner.

[0271] In the case that the first signal is for sensing and is carried in a data channel or a control channel, or the first signal is for communication and is carried in a data channel or a control channel, the power allocation manner set includes at least one of the fourth power allocation manner, the fifth power allocation manner or the sixth power allocation manner.

[0272] Further, the power allocation manner set can be the same for different types of signals for sensing and communication, but the power allocation ratio corresponding to the same power allocation manner in the power allocation manner set can be different. For example, in the case that the first signal is an uplink data signal for sensing and communication, or a downlink data signal for sensing and communication, the power allocation manner set includes at least one of the fourth power allocation manner or the fifth power allocation manner, but in the case that the first signal is an uplink data signal for sensing and communication, the fourth power allocation manner corresponds to the first power allocation ratio set, and the fifth power allocation manner corresponds to the second power allocation ratio set; in the case that the first signal is a downlink data signal for sensing and communication, the fourth power allocation manner corresponds to the third power allocation ratio set, and the fifth power allocation manner corresponds to the fourth power allocation ratio set. The first power allocation ratio set and the third power allocation ratio set are different, and the second power allocation ratio set and the fourth power allocation ratio set are different.

[0273] The above describes the six power allocation manners provided by the present application. The implementation of the second indication information indicating the power allocation manner is described in detail below.

[0274] As a possible implementation, the second indication information indicates an index of the power allocation manner corresponding to the first signal. Optionally, the protocol can predefine or the RAN node and the terminal can pre-determine the index of each power allocation manner in the set of power allocation manners and the corresponding power allocation coefficient set, i.e., determine the correspondence among the power allocation manner index, the power allocation manner, and the power allocation coefficient set. Based on this, in the case that the RAN node indicates the index of the power allocation manner corresponding to the first signal through the second indication information, the terminal can determine the power allocation manner corresponding to the index and the power allocation coefficient according to the pre-determined correspondence.

[0275] For example, in the case that the set of power allocation manners includes 3 power allocation manners, each of which corresponds to a power allocation coefficient set, the correspondence among the power allocation manner index, the power allocation manner, and the power allocation coefficient set can be as shown in Table 17.

[0276] Table 17

[0277] Index of the power allocation mode Power allocation mode Power allocation coefficient set 0 Power allocation mode 1 Power allocation coefficient set 1 1 Power allocation mode 2 Power allocation coefficient set 2 2 Power allocation mode 3 Power allocation coefficient set 3

[0278] Among them, at least one of the power allocation manner 1, the power allocation manner 2, and the power allocation manner 3 belongs to the six power allocation manners provided in the present application.

[0279] For example, in this possible implementation, the second indication information can include a first field, and the value of the first field can be understood as the index of the power allocation manner corresponding to the first signal. For example, in the case that the power allocation manner corresponding to the first signal is the power allocation manner 1, the first field can be set to "00", i.e., indicating that the index of the power allocation manner corresponding to the first signal is 0. The terminal can know that the power allocation manner corresponding to the first signal is the power allocation manner 1 based on the correspondence shown in Table 1.

[0280] Optionally, in the case that the power allocation manner corresponding to the first signal corresponds to multiple power allocation coefficient sets, the second indication information further indicates a certain power allocation coefficient set (denoted as the first power allocation coefficient set) corresponding to the power allocation manner, which can be understood as the power allocation coefficient set finally used to determine the power. That is, the second indication information indicates the power allocation manner corresponding to the first signal and the power allocation coefficient set corresponding to the power allocation manner.

[0281] For example, in the case that the power allocation manner corresponding to the first signal is the power allocation manner 1, and the power allocation manner 1 corresponds to the power allocation coefficient set 11 and the power allocation coefficient set 12 (i.e., the correspondence is as shown in Table 18), the second indication information can include a first field and a second field, the first field is used to indicate the power allocation manner 1, and the second field is used to indicate the first power allocation coefficient set.

[0282] Table 18

[0283]

[0284] Based on the above example, assuming that the first power allocation coefficient set is power allocation coefficient set 11, and the value of the second field can be understood as the index of the power allocation coefficient set, the second field can be set to "0", that is, indicating that the index of the first power allocation coefficient set is 0, and the terminal can obtain the power allocation mode corresponding to the first signal based on the corresponding relationship shown in Table 18, that is, the power allocation mode corresponding to the first signal is power allocation mode 1, and the power allocation mode 1 corresponding power allocation coefficient set 11 is used this time.

[0285] As another possible implementation, the second indication information indicates the power allocation coefficient set corresponding to the power allocation mode corresponding to the first signal. Optionally, all power allocation coefficient sets corresponding to all power allocation modes in the power allocation mode set can be numbered without repetition in advance to determine the corresponding relationship between the index of the power allocation coefficient set, the power allocation coefficient set and the power allocation mode. Subsequently, when the RAN node indicates a certain power allocation coefficient set through the second indication information, the terminal can determine the power allocation coefficient set and the power allocation mode corresponding to the power allocation coefficient set according to the corresponding relationship,

[0286] For example, the power allocation mode set includes 3 power allocation modes, and each power allocation mode corresponds to 2 power allocation coefficient sets. The corresponding relationship between the index of the power allocation coefficient set, the power allocation coefficient set and the power allocation mode can be shown in Table 19.

[0287] Table 19

[0288]

[0289] Among them, at least one of the power allocation mode 1, the power allocation mode 2 and the power allocation mode 3 belongs to the six power allocation modes provided in the present application.

[0290] For example, in this possible implementation, the second indication information can include a third field. The value of the third field can be understood as the index of the power allocation coefficient set corresponding to the power allocation mode corresponding to the first signal. Taking the power allocation coefficient set 1 corresponding to the power allocation mode 1 of the first signal as an example, the third field can be set to "000", that is, indicating that the index of the power allocation coefficient set corresponding to the power allocation mode corresponding to the first signal is 0. The terminal can obtain the power allocation mode corresponding to the first signal based on the corresponding relationship shown in Table 19, that is, the power allocation mode corresponding to the first signal is power allocation mode 1, and the corresponding power allocation coefficient set is power allocation coefficient set 1.

[0291] In a possible implementation, in the case that the RAN node also sends the second indication information, in step S603, the terminal transmits or receives the first signal according to the first indication information and the second indication information. For example, the terminal determines the power corresponding to each frequency domain resource group in the first bandwidth according to the power allocation manner corresponding to the power allocation coefficients and the total power indicated by the second indication information, the size of the frequency domain resource group is the size of the power allocation granularity indicated by the first indication information, and the type of the frequency domain resource group is the type of the power allocation granularity indicated by the first indication information.

[0292] Based on the above scheme, when transmitting a signal, the RAN node can indicate one power allocation manner from at least two power allocation manners, so that the transceiver can determine the power corresponding to each frequency domain resource group based on the power allocation manner indicated by the RAN node, and then transmit or receive a signal according to the power corresponding to each frequency domain resource group. Since the present application provides multiple power allocation manners, the RAN node can flexibly select a power allocation manner suitable for current signal transmission, improve the flexibility and rationality of power allocation, and then improve the sensing performance and / or communication performance based on reasonable power allocation.

[0293] The above describes the method provided by the present application, and in addition, the present application also provides a communication device for implementing the functions described in the above method embodiments.

[0294] It can be understood that, in order to implement the above functions, the communication device comprises a hardware structure and / or a software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is implemented in hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0295] The embodiments of the present application can divide the functions of the communication device according to the above method embodiments, for example, each function module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be realized in the form of hardware or software function module. It should be noted that the division of the modules in the embodiments of the present application is illustrative, and is only a logical function division. When actually implemented, there can be another division manner.

[0296] Figure 12A structural diagram of a communication apparatus 120 is shown. The communication apparatus 120 includes a processing module 1201 and a transceiver module 1202. The communication apparatus 120 can be used to implement the functions of the RAN node or the terminal described above.

[0297] In some embodiments, the communication apparatus 120 can further include a storage module (not shown in the figure) for storing program instructions and data. Figure 12

[0298] In some embodiments, the transceiver module 1202, which can also be referred to as a transceiver unit, is configured to implement the transmitting and / or receiving functions. The transceiver module 1202 can be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0299] In some embodiments, the transceiver module 1202 can include a receiving module and a transmitting module, which are respectively configured to perform the receiving and transmitting steps of the RAN node or the terminal in the method embodiments described above, and / or other processes for supporting the technologies described herein; the processing module 1201 can be configured to perform the processing steps of the RAN node or the terminal in the method embodiments described above, and / or other processes for supporting the technologies described herein.

[0300] When the communication apparatus 120 is used to implement the functions of the RAN node:

[0301] The processing module 1201 is configured to determine the power allocation granularity corresponding to the first signal; and the transceiver module 1202 is configured to send indication information indicating the power allocation granularity corresponding to the first signal. The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities. The at least two power allocation granularities include at least one of the following: subcarriers, subcarrier groups, resource blocks, or resource block groups. The first signal is a reference signal or a signal carried in a data channel or a control channel.

[0302] Optionally, the transceiver module 1202 is further configured to receive or transmit the first signal according to the power allocation granularity corresponding to the first signal.

[0303] When the communication apparatus 120 is used to implement the functions of the terminal:

[0304] The transceiver module 1202 is configured to receive indication information indicating the power allocation granularity corresponding to the first signal; and the transceiver module 1202 is further configured to transmit or receive the first signal according to the indication information. The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities. The at least two power allocation granularities include at least one of the following: subcarriers, subcarrier groups, resource blocks, or resource block groups. The first signal is a reference signal or a signal carried in a data channel or a control channel. ​

[0305] Optionally, the transceiver 1202 is further configured to transmit or receive the first signal according to the indication information, including: the transceiver 1202 is further configured to determine the power allocation granularity corresponding to the first signal according to the indication information; and the transceiver 1202 is further configured to transmit or receive the first signal according to the power allocation granularity corresponding to the first signal.

[0306] When the communication apparatus 120 is configured to implement the function of the RAN node or the terminal:

[0307] Optionally, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates the type of the power allocation granularity corresponding to the first signal; and / or, the indication information indicates the value of the power allocation granularity corresponding to the first signal.

[0308] Optionally, the indication information is carried in a first field. When the first field is set to a first value, the type of the power allocation granularity corresponding to the first signal is a subcarrier; or, when the first field is set to a second value, the type of the power allocation granularity corresponding to the first signal is a subcarrier group; or, when the first field is set to a third value, the type of the power allocation granularity corresponding to the first signal is a resource block; or, when the first field is set to a fourth value, the type of the power allocation granularity corresponding to the first signal is a resource block group.

[0309] Optionally, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates the number of frequency domain resource units occupied by the first signal, and the number of frequency domain resource units occupied by the first signal and the power allocation granularity corresponding to the first signal have a correlation.

[0310] Optionally, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates the signal type of the first signal, and the signal type of the first signal and the power allocation granularity corresponding to the first signal have a correlation. The signal type of the first signal includes at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel.

[0311] Optionally, when the frequency domain resource unit is a resource block, if the number of resource blocks occupied by the first signal is greater than or equal to a fifth value, the power allocation granularity corresponding to the first signal is 2 resource blocks; if the number of resource blocks occupied by the first signal is less than the fifth value and greater than or equal to a sixth value, the power allocation granularity corresponding to the first signal is 1 resource block; if the number of resource blocks occupied by the first signal is less than the sixth value and greater than or equal to a seventh value, the power allocation granularity corresponding to the first signal is 0.5 resource block; and if the number of resource blocks occupied by the first signal is less than the seventh value, the power allocation granularity corresponding to the first signal is 1 subcarrier.

[0312] Optionally, in the case that the signal type of the first signal is a signal carried in a data channel or a control channel, the power allocation granularity corresponding to the first signal is 2 resource blocks; in the case that the signal type of the first signal is a reference signal and the reference signal is used for sensing and communication, the power allocation granularity corresponding to the first signal is 1 resource block; in the case that the signal type of the first signal is a reference signal and the first signal is dedicated for sensing, the power allocation granularity corresponding to the first signal is 0.5 resource block.

[0313] The above-mentioned method embodiments involve all related contents of each step, which can be referred to the function description of the corresponding function module, and will not be repeated here.

[0314] In the present application, the communication apparatus 120 can be presented in the form of integrated division of each function module. The "module" here can refer to a specific application-specific integrated circuit (ASIC), a circuit, a processor and a memory executing one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0315] In some embodiments, when the communication apparatus 120 in the above-mentioned method embodiments is a chip or a chip system, the function / implementation process of the transceiver module 1202 can be realized through the input / output interface (or communication interface) of the chip or chip system, and the function / implementation process of the processing module 1201 can be realized through the processor (or processing circuit) of the chip or chip system. Figure 12 Since the communication apparatus 120 provided by the present embodiment can execute the above-mentioned method, the technical effects it can obtain can be referred to the above-mentioned method embodiments, and will not be repeated here.

[0316] As a possible product form, the RAN node or terminal described in the embodiments of the present application can be implemented using one or more field programmable gate arrays (FPGAs), programmable logic devices (PLDs), controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits capable of performing the various functions described throughout the present application.

[0317] As another possible product form, the RAN node or terminal described in the embodiments of the present application can be implemented by a general bus architecture. For ease of illustration, see

[0318] Figure 13 , Figure 13 ​Figure 13 shows a schematic diagram of a communication device 1300 according to an embodiment of the application. The communication device 1300 comprises a processor 1301 and a transceiver 1302. The communication device 1300 can be a RAN node, or a chip or chip system therein; or the communication device 1300 can be a terminal, or a chip or module therein. Figure 13 Only main components of the communication device 1300 are shown. In addition to the processor 1301 and the transceiver 1302, the communication device can further comprise a memory 1303, and an input output device (not shown).

[0319] Optionally, the processor 1301 is mainly configured to process communication protocols and communication data, and control the whole communication device, execute software programs, process data of the software programs, so as to implement the methods provided in the above method embodiments. The memory 1303 is mainly configured to store software programs and data. The transceiver 1302 can comprise a radio frequency circuit and an antenna. The radio frequency circuit is mainly configured to convert baseband signals and radio frequency signals, and process the radio frequency signals. The antenna is mainly configured to transceive radio frequency signals in the form of electromagnetic waves. The input output device, such as a touch screen, a display screen, a keyboard, etc., is mainly configured to receive data input by a user and output data to the user.

[0320] Optionally, the processor 1301, the transceiver 1302, and the memory 1303 can be connected through a communication bus.

[0321] When the communication device is powered on, the processor 1301 can read software programs in the memory 1303, execute instructions of the software programs, and process data of the software programs. When data needs to be transmitted wirelessly, the processor 1301 performs baseband processing on the data to be transmitted, and outputs the baseband signals to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signals, and transmits the radio frequency signals in the form of electromagnetic waves through the antenna. When data is transmitted to the communication device, the radio frequency circuit receives the radio frequency signals through the antenna, converts the radio frequency signals into baseband signals, and outputs the baseband signals to the processor 1301. The processor 1301 converts the baseband signals into data and processes the data.

[0322] In another implementation, the radio frequency circuit and the antenna can be arranged independently of the processor performing the baseband processing, for example, in a distributed scenario, the radio frequency circuit and the antenna can be arranged remotely from the communication device.

[0323] In some embodiments, in hardware implementation, those skilled in the art can conceive that the above communication device 120 can adopt the form of the communication device 1300 shown in Figure 13. Figure 13

[0324] As an example, Figure 12 ​The functions / implementation procedures of the processing module 1201 in the communication device 1200 can be implemented by the processor 1201 in the communication device 1200 shown in Figure 13 The processor 1301 in the communication device 1300 shown in FIG. 13 invokes the computer-executed instructions stored in the memory 1303 to implement. Figure 12 The functions / implementation procedures of the transceiver module 1202 in the communication device 1200 can be implemented by the transceiver 1202 in the communication device 1200 shown in Figure 13 The functions / implementation procedures of the transceiver module 1202 in the communication device 1200 can be implemented by the transceiver 1302 in the communication device 1300 shown in FIG. 13.

[0325] As yet another possible product form, the RAN node or the terminal in the present application can adopt the constituent structure shown in Figure 14 or include the components shown in Figure 14 . Figure 14 A constituent diagram of a communication device 1400 is provided in the present application, which can be a RAN node or a chip or system on chip in the RAN node; or can be a terminal or a module or chip or system on chip in the terminal.

[0326] As shown in Figure 14 , the communication device 1400 includes at least one processor 1401 and at least one communication interface (1404). (In the present application, only one communication interface 1404 is exemplary to include one communication interface 1404, and the processor 1401 is exemplary to be described by taking one processor 1401 as an example.) Optionally, the communication device 1400 can further include a communication bus 1402 and a memory 1403. Figure 14

[0327] The processor 1401 can be a general central processing unit (CPU), a general processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a PLD, or any combination thereof. The processor 1401 can also be other devices with processing capabilities, such as a circuit, a device, or a software module, without limitation.

[0328] The communication bus 1402 is used to connect different components in the communication device 1400, so that different components can communicate. The communication bus 1402 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 14 in the present application, only one thick line is used to represent, but it does not mean that there is only one bus or only one type of bus. ​

[0329] The communication interface 1404 is configured to communicate with other devices or communication networks. For example, the communication interface 1404 can be a module, a circuit, a transceiver, or any device capable of implementing communication. Alternatively, the communication interface 1404 can also be an input / output interface in the processor 1401, to realize the signal input and signal output of the processor.

[0330] The memory 1403 can be a device with a storage function, configured to store instructions and / or data. The instructions can be a computer program.

[0331] For example, the memory 1403 can be a read-only memory (ROM) or other type of static storage device that can store static information and / or instructions, or can be a random access memory (RAM) or other type of dynamic storage device that can store information and / or instructions, or can be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, a magneto-optical disk, a magnetic disk storage medium or other magnetic storage device, and the like, without limitation.

[0332] It should be noted that the memory 1403 can exist independently of the processor 1401, or can be integrated with the processor 1401. The memory 1403 can be located in the communication device 1400, or can be located outside the communication device 1400, without limitation. The processor 1401 can be configured to execute instructions stored in the memory 1403 to implement the methods provided in the embodiments described below.

[0333] Optionally, the processor 1401 and / or the memory 1403 can include an artificial intelligence (AI) module, which is configured to implement AI-related functions. The AI module can be implemented by software, hardware, or a combination of software and hardware. For example, the AI module can include a radio network intelligent controller (RIC) module. For example, the AI module can be a near-real-time RIC or a non-real-time RIC.

[0334] As an optional implementation, the communication device 1400 may further include an output device 1405 and an input device 1406. The output device 1405 communicates with the processor 1401 and can display information in a variety of ways. For example, the output device 1405 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. The input device 1406 communicates with the processor 1401 and can receive user input in a variety of ways. For example, the input device 1406 can be a mouse, a keyboard, a touch screen device, or a sensor device.

[0335] In some embodiments, in terms of hardware implementation, those skilled in the art may think of the above Figure 12 The communication device 120 shown may be implemented using Figure 14 The form of the communication device 1400 is shown.

[0336] As an example, Figure 12 The function / implementation process of the processing module 1201 can be achieved by Figure 14 The processor 1401 in the communication device 1400 shown calls the computer execution instructions stored in the memory 1403 to implement. Figure 12 The function / implementation process of the transceiver module 1202 can be achieved by Figure 14 The communication interface 1404 in the communication device 1400 is implemented as shown.

[0337] It should be noted that Figure 14 The illustrated structure does not constitute a specific limitation on RAN nodes or terminals. For example, in other embodiments of the present application, a RAN node or terminal may include more or fewer components than illustrated, or may combine or separate certain components, or arrange the components differently. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0338] In some embodiments, an embodiment of the present application further provides a communication device, which includes a processor for implementing the method in any of the above method embodiments.

[0339] As a possible implementation, the communication device further includes a memory. The memory is used to store necessary computer programs and data. The computer program may include instructions, and the processor may invoke the instructions in the computer program stored in the memory to instruct the communication device to execute any of the above-described method embodiments. Of course, the memory may not be located in the communication device.

[0340] As another possible implementation, the communication apparatus further includes an interface circuit, which is a code / data read-write interface circuit, configured to receive computer execution instructions (the computer execution instructions are stored in the memory, and can be read directly from the memory or can pass through other devices) and transmit to the processor.

[0341] As yet another possible implementation, the communication apparatus further includes a communication interface, configured to communicate with a module outside the communication apparatus.

[0342] It can be understood that the communication apparatus can be a chip or a chip system, when the communication apparatus is a chip system, the communication apparatus can be composed of a chip, or can include a chip and other discrete devices, and embodiments of the present application do not make specific limitations.

[0343] The present application also provides a computer readable storage medium, which stores a computer program or instructions, and the computer program or instructions realize the functions of any of the above method embodiments when executed by a computer.

[0344] The present application also provides a computer program product, which realizes the functions of any of the above method embodiments when executed by a computer.

[0345] Those skilled in the art can understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, apparatus and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0346] It can be understood that the system, apparatus and method described in the present application can also be implemented in other ways. For example, the apparatus embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0347] The units described as separate components can or can not be physically separate, that is, can be located in one place, or can be distributed on a plurality of network units. The components shown as units can or can not be physical units. Part or all of the units can be selected according to actual needs to achieve the purpose of the present embodiment.

[0348] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0349] In the embodiments described above, all or some of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or some of the embodiments can be implemented in the form of a computer program product storing computer program instructions. The computer program instructions are executed in a computer to implement the procedures or functions described in the embodiments of the present application. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium that can be accessed by a computer or data storage device including one or more servers, data centers, etc. integrated with the medium. The available medium can be a magnetic medium (for example, floppy disk, hard disk, magnetic tape), an optical medium (for example, DVD), or a semiconductor medium (for example, solid state disk (SSD)), etc. In the embodiments of the present application, the computer can include the device described above.

[0350] Although the present application is described herein in conjunction with various embodiments, other variations of the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from the appended claims, the disclosure and the accompanying drawings. In the claims, the word "comprising" does not exclude other components or steps, and the indefinite articles "a" or "an" do not exclude a plurality. A single processor or other unit can implement several functions of the claims. Means plus function claims are intended to cover, besides the absolute product specified in the claims, also its equivalents falling within the scope of the claims.

[0351] Although the present application has been described in connection with the preferred embodiments thereof with reference to the specific content thereof, it will be apparent to those skilled in the art that various modifications and changes can be made thereto without departing from the scope of the present application. Accordingly, the description and drawings are to be regarded as illustrative in nature and are not to be taken as limiting the scope of the present application as defined by the appended claims. Obviously many modifications and changes can be made in the application without departing from the scope thereof. It is understood that the application is not to be limited to the specific examples set forth as examples, but that these examples are intended to cover all modifications and variations of this application.

Claims

1. A communication method characterized by comprising: The method comprises: determining a power allocation granularity corresponding to a first signal, the power allocation granularity corresponding to the first signal being one of at least two power allocation granularities, the at least two power allocation granularities comprising at least one of the following: a subcarrier, a subcarrier group, a resource block, or a resource block group; the first signal being a reference signal or a signal carried in a data channel or a control channel; sending indication information, the indication information indicating the power allocation granularity corresponding to the first signal.

2. The method of claim 1, wherein, The indication information indicates the power allocation granularity corresponding to the first signal, comprising: The indication information indicates the type of the power allocation granularity corresponding to the first signal; and / or, The indication information indicates the value of the power allocation granularity corresponding to the first signal.

3. The method of claim 2, wherein, The indication information is carried in a first field; In a case where the first field is set to a first numerical value, the type of the power allocation granularity corresponding to the first signal is a subcarrier; or, In a case where the first field is set to a second numerical value, the type of the power allocation granularity corresponding to the first signal is a subcarrier group; or, In a case where the first field is set to a third numerical value, the type of the power allocation granularity corresponding to the first signal is a resource block; or, In a case where the first field is set to a fourth numerical value, the type of the power allocation granularity corresponding to the first signal is a resource block group.

4. The method of claim 1, wherein, The indication information indicates the power allocation granularity corresponding to the first signal, comprising: The indication information indicates the number of frequency domain resource units occupied by the first signal, the number of frequency domain resource units occupied by the first signal being in a correlation relationship with the power allocation granularity corresponding to the first signal.

5. The method of claim 1, wherein, The indication information indicates the power allocation granularity corresponding to the first signal, comprising: The indication information indicates the signal type of the first signal, the signal type of the first signal being in a correlation relationship with the power allocation granularity corresponding to the first signal; The signal type of the first signal comprises at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel.

6. The method of claim 4, wherein, The frequency domain resource unit is a resource block; In a case where the number of resource blocks occupied by the first signal is greater than or equal to a fifth numerical value, the power allocation granularity corresponding to the first signal is 2 resource blocks; In a case where the number of resource blocks occupied by the first signal is less than the fifth numerical value and greater than or equal to a sixth numerical value, the power allocation granularity corresponding to the first signal is 1 resource block; In a case where the number of resource blocks occupied by the first signal is less than the sixth numerical value and greater than or equal to a seventh numerical value, the power allocation granularity corresponding to the first signal is 0.5 resource block; In a case where the number of resource blocks occupied by the first signal is less than the seventh numerical value, the power allocation granularity corresponding to the first signal is 1 subcarrier.

7. The method of claim 5, wherein: In a case where the signal type of the first signal is the signal carried in the data channel or the control channel, the power allocation granularity corresponding to the first signal is 2 resource blocks; In a case that the signal type of the first signal is the reference signal and the reference signal is used for sensing and communication, the power allocation granularity corresponding to the first signal is 1 resource block; In a case that the signal type of the first signal is the reference signal and the first signal is used for sensing only, the power allocation granularity corresponding to the first signal is 0.5 resource block.

8. The method according to any one of claims 1 to 7, characterized in that, The method further comprises: receiving or sending the first signal according to the power allocation granularity corresponding to the first signal.

9. A communication method, characterized in that: The method comprises: receiving indication information, the indication information indicating a power allocation granularity corresponding to a first signal, the power allocation granularity corresponding to the first signal being one of at least two power allocation granularities, the at least two power allocation granularities comprising at least one of the following: a subcarrier, a subcarrier group, a resource block, or a resource block group; the first signal being a reference signal or a signal carried in a data channel or a control channel; sending or receiving the first signal according to the indication information.

10. The method of claim 9, wherein, The indication information indicating the power allocation granularity corresponding to the first signal comprises: The indication information indicates a type of the power allocation granularity corresponding to the first signal; and / or, The indication information indicates a value of the power allocation granularity corresponding to the first signal.

11. The method of claim 10, wherein, The indication information is carried in a first field; In a case that the first field is set to a first numerical value, the type of the power allocation granularity corresponding to the first signal is a subcarrier; or, In a case that the first field is set to a second numerical value, the type of the power allocation granularity corresponding to the first signal is a subcarrier group; or, In a case that the first field is set to a third numerical value, the type of the power allocation granularity corresponding to the first signal is a resource block; or, In a case that the first field is set to a fourth numerical value, the type of the power allocation granularity corresponding to the first signal is a resource block group.

12. The method of claim 9, wherein, The indication information indicating the power allocation granularity corresponding to the first signal comprises: The indication information indicates a number of frequency domain resource units occupied by the first signal, the number of frequency domain resource units occupied by the first signal being in a correlation relationship with the power allocation granularity corresponding to the first signal.

13. The method of claim 9, wherein, The indication information indicating the power allocation granularity corresponding to the first signal comprises: The indication information indicates a signal type of the first signal, the signal type of the first signal being in a correlation relationship with the power allocation granularity corresponding to the first signal; The signal type of the first signal comprises at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel.

14. The method of claim 12, wherein, The frequency domain resource unit is a resource block; In a case that the number of resource blocks occupied by the first signal is greater than or equal to a fifth numerical value, the power allocation granularity corresponding to the first signal is 2 resource blocks; In a case that the number of resource blocks occupied by the first signal is less than the fifth numerical value and greater than or equal to a sixth numerical value, the power allocation granularity corresponding to the first signal is 1 resource block; In a case where the first signal occupies a number of resource blocks less than the sixth number and greater than or equal to a seventh number, a power allocation granularity corresponding to the first signal is 0.5 resource blocks. In a case where the first signal occupies a number of resource blocks less than the seventh number, the power allocation granularity corresponding to the first signal is 1 subcarrier.

15. The method of claim 13, wherein In a case where the first signal is of a signal type carried in a data channel or a control channel, the power allocation granularity corresponding to the first signal is 2 resource blocks. In a case where the first signal is of a signal type of a reference signal and the reference signal is used for sensing and communication, the power allocation granularity corresponding to the first signal is 1 resource block. In a case where the first signal is of a signal type of a reference signal and the first signal is dedicated for sensing, the power allocation granularity corresponding to the first signal is 0.5 resource block.

16. The method according to any one of claims 9-15, characterized in that, The transmitting or receiving the first signal according to the indication information comprises: determining the power allocation granularity corresponding to the first signal according to the indication information; and transmitting or receiving the first signal according to the power allocation granularity corresponding to the first signal.

17. A communications device, characterized by The communication device comprises a module for executing the method of any one of claims 1-8, or a module for executing the method of any one of claims 9-16.

18. A communications device, characterized by The communication device comprises a processor configured to execute a computer program or instructions to cause the communication device to execute the method of any one of claims 1-8, or to execute the method of any one of claims 9-16.

19. A computer-readable storage medium, characterized in that, A computer readable storage medium stores computer instructions or programs, which, when executed on a computer, cause the method of any one of claims 1-8 to be executed, or cause the method of any one of claims 9-16 to be executed.

20. A computer program product, characterized in that The computer program product comprises computer instructions, which, when executed on a computer, cause the method of any one of claims 1-8 to be executed, or cause the method of any one of claims 9-16 to be executed.

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